--- _id: '9785' abstract: - lang: eng text: Hydrothermal method enables to synthesize high quality piezoelectric materials. To shorten the reaction time and to get higher quality materials, we propose an ultrasonic irradiation to the solution during the hydrothermal method. We named it ultrasonic assisted hydrothermal method (UAHTM). We have synthesized lead-free piezoelectric material and PZT thin film and the effect of UAHTM have been confirmed. In this study, we tried to improve UAHTM. First, to generate powerful and stable ultrasonic irradiation at high temperature on UAHTM, we developed a new transducer using LiNbO3 single crystal. Second, to prevent contamination to the materials, A Teflon cover on the tip of transducer was attached. author: - first_name: Gaku full_name: Isobe, Gaku last_name: Isobe - first_name: Ryo full_name: Ageba, Ryo last_name: Ageba - first_name: Takafumi full_name: Maeda, Takafumi last_name: Maeda - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita citation: ama: 'Isobe G, Ageba R, Maeda T, Bornmann P, Hemsel T, Morita T. Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method. In: B. J. Linde B, Paczkowski J, Ponikwicki N, eds. AIP Conference Proceedings. Vol 1433. AIP; 2012:569-572. doi:10.1063/1.3703251' apa: Isobe, G., Ageba, R., Maeda, T., Bornmann, P., Hemsel, T., & Morita, T. (2012). Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method. In B. B. J. Linde, J. Paczkowski, & N. Ponikwicki (Eds.), AIP Conference Proceedings (Vol. 1433, pp. 569–572). AIP. https://doi.org/10.1063/1.3703251 bibtex: '@inproceedings{Isobe_Ageba_Maeda_Bornmann_Hemsel_Morita_2012, title={Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method}, volume={1433}, DOI={10.1063/1.3703251}, number={1}, booktitle={AIP Conference Proceedings}, publisher={AIP}, author={Isobe, Gaku and Ageba, Ryo and Maeda, Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita, Takeshi}, editor={B. J. Linde, Bogumil and Paczkowski, Jacek and Ponikwicki, NikodemEditors}, year={2012}, pages={569–572} }' chicago: Isobe, Gaku, Ryo Ageba, Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted Hydrothermal Method.” In AIP Conference Proceedings, edited by Bogumil B. J. Linde, Jacek Paczkowski, and Nikodem Ponikwicki, 1433:569–72. AIP, 2012. https://doi.org/10.1063/1.3703251. ieee: G. Isobe, R. Ageba, T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method,” in AIP Conference Proceedings, 2012, vol. 1433, no. 1, pp. 569–572. mla: Isobe, Gaku, et al. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted Hydrothermal Method.” AIP Conference Proceedings, edited by Bogumil B. J. Linde et al., vol. 1433, no. 1, AIP, 2012, pp. 569–72, doi:10.1063/1.3703251. short: 'G. Isobe, R. Ageba, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, in: B. B. J. Linde, J. Paczkowski, N. Ponikwicki (Eds.), AIP Conference Proceedings, AIP, 2012, pp. 569–572.' date_created: 2019-05-13T13:21:56Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' doi: 10.1063/1.3703251 editor: - first_name: Bogumil full_name: B. J. Linde, Bogumil last_name: B. J. Linde - first_name: Jacek full_name: Paczkowski, Jacek last_name: Paczkowski - first_name: Nikodem full_name: Ponikwicki, Nikodem last_name: Ponikwicki intvolume: ' 1433' issue: '1' keyword: - contamination - lead compounds - piezoelectric materials - piezoelectric thin films - piezoelectric transducers - ultrasonic effects language: - iso: eng page: 569-572 publication: AIP Conference Proceedings publisher: AIP quality_controlled: '1' status: public title: Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method type: conference user_id: '55222' volume: 1433 year: '2012' ... --- _id: '9786' abstract: - lang: eng text: Self-optimizing mechatronic systems are a new class of technical systems. On the one hand, new challenges regarding dependability arise from their additional complexity and adaptivity. On the other hand, their abilities enable new concepts and methods to improve the dependability of mechatronic systems. This paper introduces a multi-level dependability concept for selfoptimizing mechatronic systems and shows how probabilistic planning can be used to improve the availability and reliability of systems in the operating phase. The general idea to improve the availability of autonomous systems by applying probabilistic planning methods to avoid energy shortages is exemplified on the example of an innovative railway vehicle. author: - first_name: Benjamin full_name: Klöpper, Benjamin last_name: Klöpper - first_name: Christoph full_name: Sondermann-Wölke, Christoph last_name: Sondermann-Wölke - first_name: Christoph full_name: Romaus, Christoph last_name: Romaus citation: ama: Klöpper B, Sondermann-Wölke C, Romaus C. Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle. Journal of Robotics and Mechatronics. 2012;24(1):5-15. apa: Klöpper, B., Sondermann-Wölke, C., & Romaus, C. (2012). Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle. Journal of Robotics and Mechatronics, 24(1), 5–15. bibtex: '@article{Klöpper_Sondermann-Wölke_Romaus_2012, title={Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle}, volume={24}, number={1}, journal={Journal of Robotics and Mechatronics}, author={Klöpper, Benjamin and Sondermann-Wölke, Christoph and Romaus, Christoph}, year={2012}, pages={5–15} }' chicago: 'Klöpper, Benjamin, Christoph Sondermann-Wölke, and Christoph Romaus. “Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle.” Journal of Robotics and Mechatronics 24, no. 1 (2012): 5–15.' ieee: B. Klöpper, C. Sondermann-Wölke, and C. Romaus, “Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle,” Journal of Robotics and Mechatronics, vol. 24, no. 1, pp. 5–15, 2012. mla: Klöpper, Benjamin, et al. “Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle.” Journal of Robotics and Mechatronics, vol. 24, no. 1, 2012, pp. 5–15. short: B. Klöpper, C. Sondermann-Wölke, C. Romaus, Journal of Robotics and Mechatronics 24 (2012) 5–15. date_created: 2019-05-13T13:23:45Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' intvolume: ' 24' issue: '1' keyword: - self-optimizing systems - dependability - probabilistic planning - energy management language: - iso: eng page: 5-15 publication: Journal of Robotics and Mechatronics quality_controlled: '1' status: public title: Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous Railway Vehicle type: journal_article user_id: '55222' volume: 24 year: '2012' ... --- _id: '9787' author: - first_name: Sergej full_name: Kohl, Sergej last_name: Kohl - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Armin full_name: Zuber, Armin last_name: Zuber citation: ama: 'Kohl S, Sextro W, Zuber A. Benteler Vehicle Dynamics -- Fahrdynamikentwicklung basierend auf einer neuen Auslegungstheorie. In: 8. Tag Des Fahrwerks, Aachen, 2012. Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen; 2012:38-60.' apa: Kohl, S., Sextro, W., & Zuber, A. (2012). Benteler Vehicle Dynamics -- Fahrdynamikentwicklung basierend auf einer neuen Auslegungstheorie. In 8. Tag des Fahrwerks, Aachen, 2012 (pp. 38–60). Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen. bibtex: '@inproceedings{Kohl_Sextro_Zuber_2012, place={Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen}, title={Benteler Vehicle Dynamics -- Fahrdynamikentwicklung basierend auf einer neuen Auslegungstheorie}, booktitle={8. Tag des Fahrwerks, Aachen, 2012}, author={Kohl, Sergej and Sextro, Walter and Zuber, Armin}, year={2012}, pages={38–60} }' chicago: Kohl, Sergej, Walter Sextro, and Armin Zuber. “Benteler Vehicle Dynamics -- Fahrdynamikentwicklung Basierend Auf Einer Neuen Auslegungstheorie.” In 8. Tag Des Fahrwerks, Aachen, 2012, 38–60. Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen, 2012. ieee: S. Kohl, W. Sextro, and A. Zuber, “Benteler Vehicle Dynamics -- Fahrdynamikentwicklung basierend auf einer neuen Auslegungstheorie,” in 8. Tag des Fahrwerks, Aachen, 2012, 2012, pp. 38–60. mla: Kohl, Sergej, et al. “Benteler Vehicle Dynamics -- Fahrdynamikentwicklung Basierend Auf Einer Neuen Auslegungstheorie.” 8. Tag Des Fahrwerks, Aachen, 2012, 2012, pp. 38–60. short: 'S. Kohl, W. Sextro, A. Zuber, in: 8. Tag Des Fahrwerks, Aachen, 2012, Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen, 2012, pp. 38–60.' date_created: 2019-05-13T13:25:59Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' language: - iso: eng page: 38-60 place: Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen popular_science: '1' publication: 8. Tag des Fahrwerks, Aachen, 2012 status: public title: Benteler Vehicle Dynamics -- Fahrdynamikentwicklung basierend auf einer neuen Auslegungstheorie type: conference user_id: '55222' year: '2012' ... --- _id: '9788' abstract: - lang: eng text: 'A hydrothermal method utilizes a crystallization process in the solution so that the pure and high-quality powders can be realized. Sintering from the hydrothermal KNbO3 and NaNbO3 powders, a high-dense lead-free piezoelectric (K,Na)NbO3 ceramics could be obtained (density: 98.8\%). Concerning about the g33 constant, high value as large as commercial PZT ceramics was measured. Therefore, the hydrothermal (K,Na)NbO3 ceramics is usable for the sensors and the energy harvesting devices. To demonstrate the (K,Na)NbO3 ceramics, a hydrophone sensor was fabricated and evaluated.' author: - first_name: Takafumi full_name: Maeda, Takafumi last_name: Maeda - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita citation: ama: 'Maeda T, Bornmann P, Hemsel T, Morita T. Piezoelectric applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics. In: Ultrasonics Symposium (IUS), 2012 IEEE International. ; 2012:194-195. doi:10.1109/ULTSYM.2012.0048' apa: Maeda, T., Bornmann, P., Hemsel, T., & Morita, T. (2012). Piezoelectric applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics. In Ultrasonics Symposium (IUS), 2012 IEEE International (pp. 194–195). https://doi.org/10.1109/ULTSYM.2012.0048 bibtex: '@inproceedings{Maeda_Bornmann_Hemsel_Morita_2012, title={Piezoelectric applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics}, DOI={10.1109/ULTSYM.2012.0048}, booktitle={Ultrasonics Symposium (IUS), 2012 IEEE International}, author={Maeda, Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita, Takeshi}, year={2012}, pages={194–195} }' chicago: Maeda, Takafumi, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Applications of Hydrothermal Lead-Free (K0.48Na0.52)NbO3 Ceramics.” In Ultrasonics Symposium (IUS), 2012 IEEE International, 194–95, 2012. https://doi.org/10.1109/ULTSYM.2012.0048. ieee: T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Piezoelectric applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics,” in Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 194–195. mla: Maeda, Takafumi, et al. “Piezoelectric Applications of Hydrothermal Lead-Free (K0.48Na0.52)NbO3 Ceramics.” Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 194–95, doi:10.1109/ULTSYM.2012.0048. short: 'T. Maeda, P. Bornmann, T. Hemsel, T. Morita, in: Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 194–195.' date_created: 2019-05-13T13:28:05Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' doi: 10.1109/ULTSYM.2012.0048 keyword: - crystallisation - hydrophones - piezoceramics - potassium compounds - powder technology - powders - sensors - sintering - sodium compounds - (K0.48Na0.52)NbO3 - KNbO3 powder - NaNbO3 powder - crystallization - energy harvesting devices - g33 constant - hydrophone sensor - hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics - hydrothermal method - piezoelectric applications - sintering - Materials - Transducers language: - iso: eng page: 194-195 publication: Ultrasonics Symposium (IUS), 2012 IEEE International publication_identifier: issn: - 1948-5719 quality_controlled: '1' status: public title: Piezoelectric applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics type: conference user_id: '55222' year: '2012' ... --- _id: '9789' abstract: - lang: eng text: '[$Li_x(Na_0.52K_0.48)_1-x]NbO_3 (0 \leq x \leq 0.091)$ ceramics were synthesized using hydrothermal powders and the lithium doping content was controlled to optimize their piezoelectric properties. The raw KNbO$_3$ and NaNbO$_3$ powders were obtained separately by a hydrothermal method and LiNbO$_3$ powders were prepared by milling a commercial LiNbO$_3$ single crystal. These powders were mixed with ethanol at a molar ratio LiNbO$_3$: ($Na_0.52K_0.48$)NbO$_3 = x : 1-x$. The synthesized powders were sintered at 1060--1120 $\,^{\circ}$C for 2 h. We succeeded in obtaining highly dense [$Li_x(Na_0.52K_0.48)_1-x]NbO_3$ ceramics using hydrothermal powder. The X-ray diffraction patterns revealed that the crystal phase changed from orthorhombic to tetragonal at around x = 0.06. At this morphotropic phase boundary (MPB), the c/a ratio changed from 1.016 to 1.024 and the highest piezoelectric constant was obtained with the chemical component of [$Li_x(Na_0.52K_0.48)_1-x]NbO_3$. The obtained piezoelectric properties were as follows: $k_33 = 0.51, \epsilon 33^T/ \epsilon _0 = 836$ , $c_33^E = 46$ GPa, $d_33 = 203$ pC/N, and $T_c = 482 $\,^{\circ}$C$.' author: - first_name: Takafumi full_name: Maeda, Takafumi last_name: Maeda - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Takeshi full_name: Morita, Takeshi last_name: Morita citation: ama: Maeda T, Hemsel T, Morita T. Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders. Japanese Journal of Applied Physics. 2012;51:09MD08. doi:10.1143/JJAP.51.09MD08 apa: Maeda, T., Hemsel, T., & Morita, T. (2012). Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders. Japanese Journal of Applied Physics, 51, 09MD08. https://doi.org/10.1143/JJAP.51.09MD08 bibtex: '@article{Maeda_Hemsel_Morita_2012, title={Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders}, volume={51}, DOI={10.1143/JJAP.51.09MD08}, journal={Japanese Journal of Applied Physics}, publisher={The Japan Society of Applied Physics}, author={Maeda, Takafumi and Hemsel, Tobias and Morita, Takeshi}, year={2012}, pages={09MD08} }' chicago: 'Maeda, Takafumi, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders.” Japanese Journal of Applied Physics 51 (2012): 09MD08. https://doi.org/10.1143/JJAP.51.09MD08.' ieee: T. Maeda, T. Hemsel, and T. Morita, “Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders,” Japanese Journal of Applied Physics, vol. 51, p. 09MD08, 2012. mla: Maeda, Takafumi, et al. “Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders.” Japanese Journal of Applied Physics, vol. 51, The Japan Society of Applied Physics, 2012, p. 09MD08, doi:10.1143/JJAP.51.09MD08. short: T. Maeda, T. Hemsel, T. Morita, Japanese Journal of Applied Physics 51 (2012) 09MD08. date_created: 2019-05-13T13:29:10Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' doi: 10.1143/JJAP.51.09MD08 intvolume: ' 51' language: - iso: eng page: 09MD08 publication: Japanese Journal of Applied Physics publisher: The Japan Society of Applied Physics quality_controlled: '1' status: public title: Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders type: journal_article user_id: '55222' volume: 51 year: '2012' ... --- _id: '9791' abstract: - lang: eng text: 'The rapid development of communication and information technology opens up fascinating perspectives, which go far beyond the state of the art in mechatronics: mechatronic systems with inherent partial intelligence. These so called self-optimizing systems adapt their objectives and behavior autonomously and flexibly to changing operating conditions. On the one hand, securing the dependability of such systems is challenging due to their complexity and non-deterministic behavior. On the other hand, self-optimization can be used to increase the dependability of the system during its operation. However, it has to be ensured, that the self-optimization works dependable itself. To cope with these challenges, the multi-level dependability concept was developed. It enables predictive condition monitoring, influences the objectives of the system and determines suitable means to improve the system''s dependability during its operation. In this contribution we introduce a procedure for the conceptual design of an advanced condition monitoring based on the system''s principle solution. The principle solution describes the principal operation mode of the system and its desired behavior. It is modeled using the specification technique for the domain-spanning description of the principle solution of a self-optimizing system and consists of a coherent system of eight partial models (e.g. requirements, active structure, system of objectives, behavior, etc.). The partial models are analyzed separately in order to derive the components of the multi-level dependability concept. In particular, the reliability analysis of the partial model active structure is performed to identify the system elements to be monitored and parameters to be measured. The principle solution is extended accordingly: e.g. with system elements required for the realization of the dependability concept. The advantages of the method are shown on the self-optimizing guidance module of a railroad vehicle.' author: - first_name: Christoph full_name: Sondermann-Wölke , Christoph last_name: 'Sondermann-Wölke ' - first_name: Tobias full_name: Meyer, Tobias last_name: Meyer - first_name: Rafal full_name: Dorociak, Rafal last_name: Dorociak - first_name: Jürgen full_name: Gausemeier, Jürgen last_name: Gausemeier - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Sondermann-Wölke C, Meyer T, Dorociak R, Gausemeier J, Sextro W. Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System based on its Principle Solution. In: Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012). Helsinki, Finland; 2012.' apa: Sondermann-Wölke , C., Meyer, T., Dorociak, R., Gausemeier, J., & Sextro, W. (2012). Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System based on its Principle Solution. In Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012). Helsinki, Finland. bibtex: '@inproceedings{Sondermann-Wölke _Meyer_Dorociak_Gausemeier_Sextro_2012, place={Helsinki, Finland}, title={Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System based on its Principle Solution}, booktitle={Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012)}, author={Sondermann-Wölke , Christoph and Meyer, Tobias and Dorociak, Rafal and Gausemeier, Jürgen and Sextro, Walter}, year={2012} }' chicago: Sondermann-Wölke , Christoph, Tobias Meyer, Rafal Dorociak, Jürgen Gausemeier, and Walter Sextro. “Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System Based on Its Principle Solution.” In Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012). Helsinki, Finland, 2012. ieee: C. Sondermann-Wölke , T. Meyer, R. Dorociak, J. Gausemeier, and W. Sextro, “Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System based on its Principle Solution,” in Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012), 2012. mla: Sondermann-Wölke , Christoph, et al. “Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System Based on Its Principle Solution.” Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012), 2012. short: 'C. Sondermann-Wölke , T. Meyer, R. Dorociak, J. Gausemeier, W. Sextro, in: Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012), Helsinki, Finland, 2012.' date_created: 2019-05-13T13:41:34Z date_updated: 2022-01-06T07:04:20Z department: - _id: '151' keyword: - Mechatronic Systems - Principle Solution - Condition Monitoring - Conceptual Design language: - iso: eng place: Helsinki, Finland publication: Proceedings of the 11th International Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012) quality_controlled: '1' status: public title: Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System based on its Principle Solution type: conference user_id: '55222' year: '2012' ... --- _id: '9806' abstract: - lang: eng text: Piezoelectric inertia motors, also known as ``stick-slip-drives'', use the inertia of a body to drive it by means of a friction contact in small steps. While these steps normally involve stiction and sliding, the motors can also operate in ``slip-slip'' mode without any phase of static friction. In this contribution, a one degree of freedom model of an inertia motor driven by an ideal actuator is analysed. Start-up and constant velocity operation of the motor are investigated and appropriate quantities to compare ``stick-slip'' and ``slip-slip'' operation are determined. Different aspects such as velocity, uniformity of motion, load capacity, robustness, efficiency, and wear are considered. The analysis allows both modes to be applied advantageously in different applications and can widen the field of application of piezoelectric inertia motors. Motor designers are enabled to choose the appropriate mode of operation and the best drive parameters for their individual applications. author: - first_name: Matthias full_name: Hunstig, Matthias last_name: Hunstig - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: Hunstig M, Hemsel T, Sextro W. Analysis of different operation modes for inertia motors. ACTUATOR 2012 Conference Proceedings. 2012:761-764. apa: Hunstig, M., Hemsel, T., & Sextro, W. (2012). Analysis of different operation modes for inertia motors. ACTUATOR 2012 Conference Proceedings, 761–764. bibtex: '@article{Hunstig_Hemsel_Sextro_2012, title={Analysis of different operation modes for inertia motors}, journal={ACTUATOR 2012 Conference Proceedings}, author={Hunstig, Matthias and Hemsel, Tobias and Sextro, Walter}, year={2012}, pages={761–764} }' chicago: Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Analysis of Different Operation Modes for Inertia Motors.” ACTUATOR 2012 Conference Proceedings, 2012, 761–64. ieee: M. Hunstig, T. Hemsel, and W. Sextro, “Analysis of different operation modes for inertia motors,” ACTUATOR 2012 Conference Proceedings, pp. 761–764, 2012. mla: Hunstig, Matthias, et al. “Analysis of Different Operation Modes for Inertia Motors.” ACTUATOR 2012 Conference Proceedings, 2012, pp. 761–64. short: M. Hunstig, T. Hemsel, W. Sextro, ACTUATOR 2012 Conference Proceedings (2012) 761–764. date_created: 2019-05-13T14:11:37Z date_updated: 2022-01-06T07:04:21Z department: - _id: '151' keyword: - Piezoelectric Inertia Motors - Drive Signals - Stick-slip - Slip-slip language: - iso: eng page: 761-764 publication: ACTUATOR 2012 Conference Proceedings quality_controlled: '1' status: public title: Analysis of different operation modes for inertia motors type: journal_article user_id: '55222' year: '2012' ... --- _id: '4095' abstract: - lang: eng text: "Aiming to diminish the reflection losses of glass covered light harvesting devices, the optical reflectivity\r\nof nanostructured glass surfaces is studied theoretically and experimentally. The work is inspired by\r\nthe nanoscale roughness of insect eyes, which is tried to be replicated on a technical glass surface. To\r\nthis end, the reflectivity of glass surfaces with topographies represented by linear, parabolic and Fermishaped\r\nglass/air fill factor profiles is calculated for normal incidence. It is shown that using the latter ones,\r\nan almost complete suppression of reflections can be achieved. A simple, self-organization technique to\r\ncreate such Fermi-shaped filling factor profiles in glass experimentally is also presented." article_type: original author: - first_name: J. full_name: Achtelik, J. last_name: Achtelik - first_name: W. full_name: Sievers, W. last_name: Sievers - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: 'Achtelik J, Sievers W, Lindner J. Biomimetic approaches to create anti-reflection glass surfaces for solar cells using self-organizing techniques. Materials Science and Engineering: B. 2012;178(9):635-638. doi:10.1016/j.mseb.2012.10.014' apa: 'Achtelik, J., Sievers, W., & Lindner, J. (2012). Biomimetic approaches to create anti-reflection glass surfaces for solar cells using self-organizing techniques. Materials Science and Engineering: B, 178(9), 635–638. https://doi.org/10.1016/j.mseb.2012.10.014' bibtex: '@article{Achtelik_Sievers_Lindner_2012, title={Biomimetic approaches to create anti-reflection glass surfaces for solar cells using self-organizing techniques}, volume={178}, DOI={10.1016/j.mseb.2012.10.014}, number={9}, journal={Materials Science and Engineering: B}, publisher={Elsevier BV}, author={Achtelik, J. and Sievers, W. and Lindner, Jörg}, year={2012}, pages={635–638} }' chicago: 'Achtelik, J., W. Sievers, and Jörg Lindner. “Biomimetic Approaches to Create Anti-Reflection Glass Surfaces for Solar Cells Using Self-Organizing Techniques.” Materials Science and Engineering: B 178, no. 9 (2012): 635–38. https://doi.org/10.1016/j.mseb.2012.10.014.' ieee: 'J. Achtelik, W. Sievers, and J. Lindner, “Biomimetic approaches to create anti-reflection glass surfaces for solar cells using self-organizing techniques,” Materials Science and Engineering: B, vol. 178, no. 9, pp. 635–638, 2012.' mla: 'Achtelik, J., et al. “Biomimetic Approaches to Create Anti-Reflection Glass Surfaces for Solar Cells Using Self-Organizing Techniques.” Materials Science and Engineering: B, vol. 178, no. 9, Elsevier BV, 2012, pp. 635–38, doi:10.1016/j.mseb.2012.10.014.' short: 'J. Achtelik, W. Sievers, J. Lindner, Materials Science and Engineering: B 178 (2012) 635–638.' conference: end_date: 2012-05-18 location: Straßburg (France) name: European Materials Research Society Spring Meeting 2012 start_date: 2012-05-14 date_created: 2018-08-23T12:37:40Z date_updated: 2022-01-06T07:00:16Z ddc: - '530' department: - _id: '15' - _id: '286' - _id: '230' doi: 10.1016/j.mseb.2012.10.014 file: - access_level: closed content_type: application/pdf creator: hclaudia date_created: 2018-08-23T12:39:27Z date_updated: 2018-08-23T12:39:27Z file_id: '4096' file_name: Biomimetic approaches to create anti-reflection glass surfaces for solar cells using self-organizing techniques.pdf file_size: 729276 relation: main_file success: 1 file_date_updated: 2018-08-23T12:39:27Z has_accepted_license: '1' intvolume: ' 178' issue: '9' language: - iso: eng page: 635-638 publication: 'Materials Science and Engineering: B' publication_identifier: issn: - 0921-5107 publication_status: published publisher: Elsevier BV status: public title: Biomimetic approaches to create anti-reflection glass surfaces for solar cells using self-organizing techniques type: journal_article user_id: '55706' volume: 178 year: '2012' ... --- _id: '4104' abstract: - lang: eng text: We report on the molecular beam epitaxy growth of cubic GaN on 3C–SiC (001) nanostructures. Transmission electron microscopy (TEM) studies show phase-pure cubic GaN crystals with a low defect density on top of the post shaped 3C–SiC nanostructures and GaN grown on their sidewalls, which is dominated by {111} planar defects. The nanostructures, aligned parallel and perpendicular to the [110] directions of the substrate, are located in anti-phase domains of the 3C–SiC/Si (001) substrate. These anti-phase domains strongly influence the optimum growth of GaN layers in these regions. TEM measurements demonstrate a different stacking fault density in the cubic GaN epilayer in these areas. article_type: original author: - first_name: R.M. full_name: Kemper, R.M. last_name: Kemper - first_name: L. full_name: Hiller, L. last_name: Hiller - first_name: T. full_name: Stauden, T. last_name: Stauden - first_name: J. full_name: Pezoldt, J. last_name: Pezoldt - first_name: K. full_name: Duschik, K. last_name: Duschik - first_name: T. full_name: Niendorf, T. last_name: Niendorf - first_name: H.J. full_name: Maier, H.J. last_name: Maier - first_name: D. full_name: Meertens, D. last_name: Meertens - first_name: K. full_name: Tillmann, K. last_name: Tillmann - first_name: D.J. full_name: As, D.J. last_name: As - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: Kemper RM, Hiller L, Stauden T, et al. Growth of cubic GaN on 3C–SiC/Si (001) nanostructures. Journal of Crystal Growth. 2012;378:291-294. doi:10.1016/j.jcrysgro.2012.10.011 apa: Kemper, R. M., Hiller, L., Stauden, T., Pezoldt, J., Duschik, K., Niendorf, T., … Lindner, J. (2012). Growth of cubic GaN on 3C–SiC/Si (001) nanostructures. Journal of Crystal Growth, 378, 291–294. https://doi.org/10.1016/j.jcrysgro.2012.10.011 bibtex: '@article{Kemper_Hiller_Stauden_Pezoldt_Duschik_Niendorf_Maier_Meertens_Tillmann_As_et al._2012, title={Growth of cubic GaN on 3C–SiC/Si (001) nanostructures}, volume={378}, DOI={10.1016/j.jcrysgro.2012.10.011}, journal={Journal of Crystal Growth}, publisher={Elsevier BV}, author={Kemper, R.M. and Hiller, L. and Stauden, T. and Pezoldt, J. and Duschik, K. and Niendorf, T. and Maier, H.J. and Meertens, D. and Tillmann, K. and As, D.J. and et al.}, year={2012}, pages={291–294} }' chicago: 'Kemper, R.M., L. Hiller, T. Stauden, J. Pezoldt, K. Duschik, T. Niendorf, H.J. Maier, et al. “Growth of Cubic GaN on 3C–SiC/Si (001) Nanostructures.” Journal of Crystal Growth 378 (2012): 291–94. https://doi.org/10.1016/j.jcrysgro.2012.10.011.' ieee: R. M. Kemper et al., “Growth of cubic GaN on 3C–SiC/Si (001) nanostructures,” Journal of Crystal Growth, vol. 378, pp. 291–294, 2012. mla: Kemper, R. M., et al. “Growth of Cubic GaN on 3C–SiC/Si (001) Nanostructures.” Journal of Crystal Growth, vol. 378, Elsevier BV, 2012, pp. 291–94, doi:10.1016/j.jcrysgro.2012.10.011. short: R.M. Kemper, L. Hiller, T. Stauden, J. Pezoldt, K. Duschik, T. Niendorf, H.J. Maier, D. Meertens, K. Tillmann, D.J. As, J. Lindner, Journal of Crystal Growth 378 (2012) 291–294. conference: location: Nara (Japan) name: 17th Int. Conference on MBE 2012 date_created: 2018-08-23T12:59:44Z date_updated: 2022-01-06T07:00:18Z ddc: - '530' department: - _id: '15' - _id: '286' - _id: '294' doi: 10.1016/j.jcrysgro.2012.10.011 file: - access_level: closed content_type: application/pdf creator: hclaudia date_created: 2018-08-23T13:01:13Z date_updated: 2018-08-23T13:01:13Z file_id: '4105' file_name: Growth of cubic GaN on 3C-SiC-Si 001 nanostructures.pdf file_size: 3716730 relation: main_file success: 1 file_date_updated: 2018-08-23T13:01:13Z has_accepted_license: '1' intvolume: ' 378' language: - iso: eng page: 291-294 publication: Journal of Crystal Growth publication_identifier: issn: - 0022-0248 publication_status: published publisher: Elsevier BV status: public title: Growth of cubic GaN on 3C–SiC/Si (001) nanostructures type: journal_article user_id: '55706' volume: 378 year: '2012' ... --- _id: '4114' abstract: - lang: eng text: Two methods to create biomimetic anti-reflection nanostructures in ordinary glass microscope object slides are presented. One technique is based on a nanosphere lithography process combined with physical vapour deposition of nickel and reactive ion etching (RIE). The other uses plasma induced dewetting of a smooth nickel surface. The amount of reflected light was measured and a method to simulate the reflectivity from an atomic force microscopy (AFM) topography scan of the glass surface is presented. The reflectivity for visible light at normal incidence was reduced to 20-50 % of the original value with both methods and the simulation gives results in good agreement to the measurement. article_type: original author: - first_name: Jörn full_name: Achtelik, Jörn last_name: Achtelik - first_name: Ricarda M. full_name: Kemper, Ricarda M. last_name: Kemper - first_name: Werner full_name: Sievers, Werner last_name: Sievers - first_name: Jörg full_name: Lindner, Jörg last_name: Lindner citation: ama: Achtelik J, Kemper RM, Sievers W, Lindner J. Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces. MRS Proceedings. 2012;1389. doi:10.1557/opl.2012.491 apa: Achtelik, J., Kemper, R. M., Sievers, W., & Lindner, J. (2012). Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces. MRS Proceedings, 1389. https://doi.org/10.1557/opl.2012.491 bibtex: '@article{Achtelik_Kemper_Sievers_Lindner_2012, title={Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces}, volume={1389}, DOI={10.1557/opl.2012.491}, journal={MRS Proceedings}, publisher={Cambridge University Press (CUP)}, author={Achtelik, Jörn and Kemper, Ricarda M. and Sievers, Werner and Lindner, Jörg}, year={2012} }' chicago: Achtelik, Jörn, Ricarda M. Kemper, Werner Sievers, and Jörg Lindner. “Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces.” MRS Proceedings 1389 (2012). https://doi.org/10.1557/opl.2012.491. ieee: J. Achtelik, R. M. Kemper, W. Sievers, and J. Lindner, “Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces,” MRS Proceedings, vol. 1389, 2012. mla: Achtelik, Jörn, et al. “Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces.” MRS Proceedings, vol. 1389, Cambridge University Press (CUP), 2012, doi:10.1557/opl.2012.491. short: J. Achtelik, R.M. Kemper, W. Sievers, J. Lindner, MRS Proceedings 1389 (2012). conference: end_date: 2011-12-02 location: Boston (USA) name: MRS Fall Meeting 2011 start_date: 2011-11-28 date_created: 2018-08-23T13:29:50Z date_updated: 2022-01-06T07:00:18Z department: - _id: '15' - _id: '286' doi: 10.1557/opl.2012.491 intvolume: ' 1389' language: - iso: eng publication: MRS Proceedings publication_identifier: issn: - 1946-4274 publication_status: published publisher: Cambridge University Press (CUP) status: public title: Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces type: journal_article user_id: '55706' volume: 1389 year: '2012' ... --- _id: '4115' author: - first_name: Christoph full_name: Brodehl, Christoph id: '30380' last_name: Brodehl - first_name: Siegmund full_name: Greulich-Weber, Siegmund last_name: Greulich-Weber - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: 'Brodehl C, Greulich-Weber S, Lindner J. Gyrotropic Metamaterials. In: ; 2012.' apa: Brodehl, C., Greulich-Weber, S., & Lindner, J. (2012). Gyrotropic Metamaterials. Presented at the GRK1464 Convention on Micro- and Nanostructures in Optoelectronics and Photonics, Paderborn. bibtex: '@inproceedings{Brodehl_Greulich-Weber_Lindner_2012, title={Gyrotropic Metamaterials}, author={Brodehl, Christoph and Greulich-Weber, Siegmund and Lindner, Jörg}, year={2012} }' chicago: Brodehl, Christoph, Siegmund Greulich-Weber, and Jörg Lindner. “Gyrotropic Metamaterials,” 2012. ieee: C. Brodehl, S. Greulich-Weber, and J. Lindner, “Gyrotropic Metamaterials,” presented at the GRK1464 Convention on Micro- and Nanostructures in Optoelectronics and Photonics, Paderborn, 2012. mla: Brodehl, Christoph, et al. Gyrotropic Metamaterials. 2012. short: 'C. Brodehl, S. Greulich-Weber, J. Lindner, in: 2012.' conference: end_date: 2012-12-04 location: Paderborn name: GRK1464 Convention on Micro- and Nanostructures in Optoelectronics and Photonics start_date: 2012-12-04 date_created: 2018-08-23T13:34:01Z date_updated: 2022-01-06T07:00:18Z department: - _id: '15' - _id: '286' language: - iso: eng status: public title: Gyrotropic Metamaterials type: conference user_id: '55706' year: '2012' ... --- _id: '4131' abstract: - lang: eng text: "We report an anisotropic formation of defects in cubic GaN grown on nano-patterned 3C-SiC/Si (001) by molecular\r\nbeam epitaxy. Nano-patterning of 3C-SiC/Si (001) is achieved by nanosphere lithography and a reactive\r\nion etching process. Atomic force microscopy and scanning electron microscopy show that the selectivearea-\r\ngrown cubic GaN nucleates in two structurally different domains, which most probably originate from the\r\nsubstrate. In adjacent domains the formation of defects, especially hexagonal inclusions, is different and leads to\r\ntwo different surface morphologies. The dominant phase within these domains was measured by electron backscatter\r\ndiffraction. Optical properties were investigated by micro-photoluminescence and cathodoluminescence spectroscopy." article_type: original author: - first_name: R. M. full_name: Kemper, R. M. last_name: Kemper - first_name: M. full_name: Häberlen, M. last_name: Häberlen - first_name: T. full_name: Schupp, T. last_name: Schupp - first_name: M. full_name: Weinl, M. last_name: Weinl - first_name: M. full_name: Bürger, M. last_name: Bürger - first_name: M. full_name: Ruth, M. last_name: Ruth - first_name: Cedrik full_name: Meier, Cedrik id: '20798' last_name: Meier orcid: https://orcid.org/0000-0002-3787-3572 - first_name: T. full_name: Niendorf, T. last_name: Niendorf - first_name: H. J. full_name: Maier, H. J. last_name: Maier - first_name: K. full_name: Lischka, K. last_name: Lischka - first_name: D. J. full_name: As, D. J. last_name: As - first_name: Jörg full_name: Lindner, Jörg last_name: Lindner citation: ama: Kemper RM, Häberlen M, Schupp T, et al. Formation of defects in cubic GaN grown on nano-patterned 3C-SiC (001). physica status solidi (c). 2012;9(3-4):1028-1031. doi:10.1002/pssc.201100174 apa: Kemper, R. M., Häberlen, M., Schupp, T., Weinl, M., Bürger, M., Ruth, M., … Lindner, J. (2012). Formation of defects in cubic GaN grown on nano-patterned 3C-SiC (001). Physica Status Solidi (C), 9(3–4), 1028–1031. https://doi.org/10.1002/pssc.201100174 bibtex: '@article{Kemper_Häberlen_Schupp_Weinl_Bürger_Ruth_Meier_Niendorf_Maier_Lischka_et al._2012, title={Formation of defects in cubic GaN grown on nano-patterned 3C-SiC (001)}, volume={9}, DOI={10.1002/pssc.201100174}, number={3–4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Kemper, R. M. and Häberlen, M. and Schupp, T. and Weinl, M. and Bürger, M. and Ruth, M. and Meier, Cedrik and Niendorf, T. and Maier, H. J. and Lischka, K. and et al.}, year={2012}, pages={1028–1031} }' chicago: 'Kemper, R. M., M. Häberlen, T. Schupp, M. Weinl, M. Bürger, M. Ruth, Cedrik Meier, et al. “Formation of Defects in Cubic GaN Grown on Nano-Patterned 3C-SiC (001).” Physica Status Solidi (C) 9, no. 3–4 (2012): 1028–31. https://doi.org/10.1002/pssc.201100174.' ieee: R. M. Kemper et al., “Formation of defects in cubic GaN grown on nano-patterned 3C-SiC (001),” physica status solidi (c), vol. 9, no. 3–4, pp. 1028–1031, 2012. mla: Kemper, R. M., et al. “Formation of Defects in Cubic GaN Grown on Nano-Patterned 3C-SiC (001).” Physica Status Solidi (C), vol. 9, no. 3–4, Wiley, 2012, pp. 1028–31, doi:10.1002/pssc.201100174. short: R.M. Kemper, M. Häberlen, T. Schupp, M. Weinl, M. Bürger, M. Ruth, C. Meier, T. Niendorf, H.J. Maier, K. Lischka, D.J. As, J. Lindner, Physica Status Solidi (C) 9 (2012) 1028–1031. date_created: 2018-08-27T11:31:07Z date_updated: 2022-01-06T07:00:23Z ddc: - '530' department: - _id: '286' - _id: '287' - _id: '15' - _id: '230' - _id: '35' doi: 10.1002/pssc.201100174 file: - access_level: closed content_type: application/pdf creator: hclaudia date_created: 2018-08-27T11:35:10Z date_updated: 2018-08-27T11:35:10Z file_id: '4132' file_name: Formation of defects in cubic GaN grown on nano-patterned 3C-SiC 001.pdf file_size: 848414 relation: main_file success: 1 file_date_updated: 2018-08-27T11:35:10Z has_accepted_license: '1' intvolume: ' 9' issue: 3-4 language: - iso: eng page: 1028-1031 publication: physica status solidi (c) publication_identifier: issn: - 1862-6351 publication_status: published publisher: Wiley status: public title: Formation of defects in cubic GaN grown on nano-patterned 3C-SiC (001) type: journal_article user_id: '20798' volume: 9 year: '2012' ... --- _id: '4133' author: - first_name: R.M. full_name: Kemper, R.M. last_name: Kemper - first_name: L. full_name: Hiller, L. last_name: Hiller - first_name: T. full_name: Stauden, T. last_name: Stauden - first_name: 'J. ' full_name: 'Pezoldt, J. ' last_name: Pezoldt - first_name: D. full_name: Meertens, D. last_name: Meertens - first_name: 'M. ' full_name: 'Luysberg, M. ' last_name: Luysberg - first_name: K. full_name: Tillmann, K. last_name: Tillmann - first_name: Thomas full_name: Riedl, Thomas id: '36950' last_name: Riedl - first_name: Donald full_name: As, Donald last_name: As - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: 'Kemper RM, Hiller L, Stauden T, et al. TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001) substrates. In: ; 2012.' apa: Kemper, R. M., Hiller, L., Stauden, T., Pezoldt, J., Meertens, D., Luysberg, M., … Lindner, J. (2012). TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001) substrates. Presented at the European Microscopy Congress (EMC) 2012, Manchester (UK). bibtex: '@inproceedings{Kemper_Hiller_Stauden_Pezoldt_Meertens_Luysberg_Tillmann_Riedl_As_Lindner_2012, title={TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001) substrates}, author={Kemper, R.M. and Hiller, L. and Stauden, T. and Pezoldt, J. and Meertens, D. and Luysberg, M. and Tillmann, K. and Riedl, Thomas and As, Donald and Lindner, Jörg}, year={2012} }' chicago: Kemper, R.M., L. Hiller, T. Stauden, J. Pezoldt, D. Meertens, M. Luysberg, K. Tillmann, Thomas Riedl, Donald As, and Jörg Lindner. “TEM Investigation of GaN Thin Films Grown on Nanostructured 3C-SiC/Si(001) Substrates,” 2012. ieee: R. M. Kemper et al., “TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001) substrates,” presented at the European Microscopy Congress (EMC) 2012, Manchester (UK), 2012. mla: Kemper, R. M., et al. TEM Investigation of GaN Thin Films Grown on Nanostructured 3C-SiC/Si(001) Substrates. 2012. short: 'R.M. Kemper, L. Hiller, T. Stauden, J. Pezoldt, D. Meertens, M. Luysberg, K. Tillmann, T. Riedl, D. As, J. Lindner, in: 2012.' conference: end_date: 2012-09-21 location: Manchester (UK) name: European Microscopy Congress (EMC) 2012 start_date: 2012-09-16 date_created: 2018-08-27T12:14:30Z date_updated: 2022-01-06T07:00:23Z department: - _id: '15' - _id: '286' language: - iso: eng status: public title: TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001) substrates type: conference user_id: '55706' year: '2012' ... --- _id: '4134' author: - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: 'Lindner J. Nanosphere Lithography: State-of-the-art and Future Directions. In: ; 2012.' apa: 'Lindner, J. (2012). Nanosphere Lithography: State-of-the-art and Future Directions. Presented at the E-MRS Fall Meeting 2012, Warsaw (Poland).' bibtex: '@inproceedings{Lindner_2012, title={Nanosphere Lithography: State-of-the-art and Future Directions}, author={Lindner, Jörg}, year={2012} }' chicago: 'Lindner, Jörg. “Nanosphere Lithography: State-of-the-Art and Future Directions,” 2012.' ieee: 'J. Lindner, “Nanosphere Lithography: State-of-the-art and Future Directions,” presented at the E-MRS Fall Meeting 2012, Warsaw (Poland), 2012.' mla: 'Lindner, Jörg. Nanosphere Lithography: State-of-the-Art and Future Directions. 2012.' short: 'J. Lindner, in: 2012.' conference: end_date: 2012-09-21 location: Warsaw (Poland) name: E-MRS Fall Meeting 2012 start_date: 2012-09-17 date_created: 2018-08-27T12:16:17Z date_updated: 2022-01-06T07:00:23Z department: - _id: '15' - _id: '286' language: - iso: eng status: public title: 'Nanosphere Lithography: State-of-the-art and Future Directions' type: conference user_id: '55706' year: '2012' ... --- _id: '4135' author: - first_name: Johannes full_name: Pauly, Johannes last_name: Pauly - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: 'Pauly J, Lindner J. TEM Characterization of Nickel Nanodot Arrays on Silicon formed by Nanosphere Lithography. In: ; 2012.' apa: Pauly, J., & Lindner, J. (2012). TEM Characterization of Nickel Nanodot Arrays on Silicon formed by Nanosphere Lithography. Presented at the E-MRS Fall Meeting 2012, Warsaw (Poland). bibtex: '@inproceedings{Pauly_Lindner_2012, title={TEM Characterization of Nickel Nanodot Arrays on Silicon formed by Nanosphere Lithography}, author={Pauly, Johannes and Lindner, Jörg}, year={2012} }' chicago: Pauly, Johannes, and Jörg Lindner. “TEM Characterization of Nickel Nanodot Arrays on Silicon Formed by Nanosphere Lithography,” 2012. ieee: J. Pauly and J. Lindner, “TEM Characterization of Nickel Nanodot Arrays on Silicon formed by Nanosphere Lithography,” presented at the E-MRS Fall Meeting 2012, Warsaw (Poland), 2012. mla: Pauly, Johannes, and Jörg Lindner. TEM Characterization of Nickel Nanodot Arrays on Silicon Formed by Nanosphere Lithography. 2012. short: 'J. Pauly, J. Lindner, in: 2012.' conference: end_date: 2012-09-21 location: Warsaw (Poland) name: E-MRS Fall Meeting 2012 start_date: 2012-09-17 date_created: 2018-08-27T12:17:43Z date_updated: 2022-01-06T07:00:23Z department: - _id: '286' language: - iso: eng status: public title: TEM Characterization of Nickel Nanodot Arrays on Silicon formed by Nanosphere Lithography type: conference user_id: '55706' year: '2012' ... --- _id: '4138' author: - first_name: Jörg full_name: Lindner, Jörg last_name: Lindner citation: ama: 'Lindner J. Nanokugellithographie: Grundlagen und Anwendungen. In: ; 2012.' apa: 'Lindner, J. (2012). Nanokugellithographie: Grundlagen und Anwendungen. Presented at the Firmenseminar der Carl Zeiss AG, Oberkochen und Jena (online).' bibtex: '@inproceedings{Lindner_2012, title={Nanokugellithographie: Grundlagen und Anwendungen}, author={Lindner, Jörg}, year={2012} }' chicago: 'Lindner, Jörg. “Nanokugellithographie: Grundlagen Und Anwendungen,” 2012.' ieee: 'J. Lindner, “Nanokugellithographie: Grundlagen und Anwendungen,” presented at the Firmenseminar der Carl Zeiss AG, Oberkochen und Jena (online), 2012.' mla: 'Lindner, Jörg. Nanokugellithographie: Grundlagen Und Anwendungen. 2012.' short: 'J. Lindner, in: 2012.' conference: end_date: 2012-03-26 location: Oberkochen und Jena (online) name: Firmenseminar der Carl Zeiss AG start_date: 2012-03-26 date_created: 2018-08-27T12:23:09Z date_updated: 2022-01-06T07:00:23Z department: - _id: '15' - _id: '286' language: - iso: eng status: public title: 'Nanokugellithographie: Grundlagen und Anwendungen' type: conference user_id: '55706' year: '2012' ... --- _id: '4139' author: - first_name: Jörg full_name: Lindner, Jörg last_name: Lindner citation: ama: 'Lindner J. Nanolithographie von Oberflächen für das Wachstum optoelektronischer Strukturen. In: ; 2012.' apa: Lindner, J. (2012). Nanolithographie von Oberflächen für das Wachstum optoelektronischer Strukturen. Presented at the Kolloquium des Leibniz Instituts für Oberflächenmodifizierung IOM, Leipzig (Germany). bibtex: '@inproceedings{Lindner_2012, title={Nanolithographie von Oberflächen für das Wachstum optoelektronischer Strukturen}, author={Lindner, Jörg}, year={2012} }' chicago: Lindner, Jörg. “Nanolithographie von Oberflächen Für Das Wachstum Optoelektronischer Strukturen,” 2012. ieee: J. Lindner, “Nanolithographie von Oberflächen für das Wachstum optoelektronischer Strukturen,” presented at the Kolloquium des Leibniz Instituts für Oberflächenmodifizierung IOM, Leipzig (Germany), 2012. mla: Lindner, Jörg. Nanolithographie von Oberflächen Für Das Wachstum Optoelektronischer Strukturen. 2012. short: 'J. Lindner, in: 2012.' conference: end_date: 2012-07-26 location: Leipzig (Germany) name: Kolloquium des Leibniz Instituts für Oberflächenmodifizierung IOM start_date: 2012-07-26 date_created: 2018-08-27T12:24:36Z date_updated: 2022-01-06T07:00:23Z department: - _id: '15' - _id: '286' language: - iso: eng status: public title: Nanolithographie von Oberflächen für das Wachstum optoelektronischer Strukturen type: conference user_id: '55706' year: '2012' ... --- _id: '43' article_number: '1198' article_type: original author: - first_name: Xianzhong full_name: Chen, Xianzhong last_name: Chen - first_name: Lingling full_name: Huang, Lingling last_name: Huang - first_name: Holger full_name: Mühlenbernd, Holger last_name: Mühlenbernd - first_name: Guixin full_name: Li, Guixin last_name: Li - first_name: Benfeng full_name: Bai, Benfeng last_name: Bai - first_name: Qiaofeng full_name: Tan, Qiaofeng last_name: Tan - first_name: Guofan full_name: Jin, Guofan last_name: Jin - first_name: Cheng-Wei full_name: Qiu, Cheng-Wei last_name: Qiu - first_name: Shuang full_name: Zhang, Shuang last_name: Zhang - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Chen X, Huang L, Mühlenbernd H, et al. Dual-polarity plasmonic metalens for visible light. Nature Communications. 2012;3. doi:10.1038/ncomms2207 apa: Chen, X., Huang, L., Mühlenbernd, H., Li, G., Bai, B., Tan, Q., … Zentgraf, T. (2012). Dual-polarity plasmonic metalens for visible light. Nature Communications, 3. https://doi.org/10.1038/ncomms2207 bibtex: '@article{Chen_Huang_Mühlenbernd_Li_Bai_Tan_Jin_Qiu_Zhang_Zentgraf_2012, title={Dual-polarity plasmonic metalens for visible light}, volume={3}, DOI={10.1038/ncomms2207}, number={1198}, journal={Nature Communications}, publisher={Springer Nature}, author={Chen, Xianzhong and Huang, Lingling and Mühlenbernd, Holger and Li, Guixin and Bai, Benfeng and Tan, Qiaofeng and Jin, Guofan and Qiu, Cheng-Wei and Zhang, Shuang and Zentgraf, Thomas}, year={2012} }' chicago: Chen, Xianzhong, Lingling Huang, Holger Mühlenbernd, Guixin Li, Benfeng Bai, Qiaofeng Tan, Guofan Jin, Cheng-Wei Qiu, Shuang Zhang, and Thomas Zentgraf. “Dual-Polarity Plasmonic Metalens for Visible Light.” Nature Communications 3 (2012). https://doi.org/10.1038/ncomms2207. ieee: X. Chen et al., “Dual-polarity plasmonic metalens for visible light,” Nature Communications, vol. 3, 2012. mla: Chen, Xianzhong, et al. “Dual-Polarity Plasmonic Metalens for Visible Light.” Nature Communications, vol. 3, 1198, Springer Nature, 2012, doi:10.1038/ncomms2207. short: X. Chen, L. Huang, H. Mühlenbernd, G. Li, B. Bai, Q. Tan, G. Jin, C.-W. Qiu, S. Zhang, T. Zentgraf, Nature Communications 3 (2012). date_created: 2017-09-01T08:05:25Z date_updated: 2022-01-06T07:00:50Z ddc: - '530' department: - _id: '289' doi: 10.1038/ncomms2207 file: - access_level: closed content_type: application/pdf creator: zentgraf date_created: 2018-11-28T07:02:23Z date_updated: 2018-11-28T07:02:23Z file_id: '5922' file_name: NatureCommun_Chen_2012.pdf file_size: 1589670 relation: main_file success: 1 file_date_updated: 2018-11-28T07:02:23Z has_accepted_license: '1' intvolume: ' 3' language: - iso: eng main_file_link: - open_access: '1' url: https://www.nature.com/articles/ncomms2207 oa: '1' publication: Nature Communications publication_identifier: issn: - 2041-1723 publication_status: published publisher: Springer Nature status: public title: Dual-polarity plasmonic metalens for visible light type: journal_article user_id: '30525' volume: 3 year: '2012' ... --- _id: '4333' author: - first_name: Martin full_name: Feneberg, Martin last_name: Feneberg - first_name: Marcus full_name: Röppischer, Marcus last_name: Röppischer - first_name: Christoph full_name: Cobet, Christoph last_name: Cobet - first_name: Norbert full_name: Esser, Norbert last_name: Esser - first_name: Jörg full_name: Schörmann, Jörg last_name: Schörmann - first_name: Thorsten full_name: Schupp, Thorsten last_name: Schupp - first_name: Donat Josef full_name: As, Donat Josef id: '14' last_name: As orcid: 0000-0003-1121-3565 - first_name: Florian full_name: Hörich, Florian last_name: Hörich - first_name: Jürgen full_name: Bläsing, Jürgen last_name: Bläsing - first_name: Alois full_name: Krost, Alois last_name: Krost - first_name: Rüdiger full_name: Goldhahn, Rüdiger last_name: Goldhahn citation: ama: Feneberg M, Röppischer M, Cobet C, et al. Optical properties of cubic GaN from 1 to 20 eV. Physical Review B. 2012;85(15). doi:10.1103/physrevb.85.155207 apa: Feneberg, M., Röppischer, M., Cobet, C., Esser, N., Schörmann, J., Schupp, T., … Goldhahn, R. (2012). Optical properties of cubic GaN from 1 to 20 eV. Physical Review B, 85(15). https://doi.org/10.1103/physrevb.85.155207 bibtex: '@article{Feneberg_Röppischer_Cobet_Esser_Schörmann_Schupp_As_Hörich_Bläsing_Krost_et al._2012, title={Optical properties of cubic GaN from 1 to 20 eV}, volume={85}, DOI={10.1103/physrevb.85.155207}, number={15}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Feneberg, Martin and Röppischer, Marcus and Cobet, Christoph and Esser, Norbert and Schörmann, Jörg and Schupp, Thorsten and As, Donat Josef and Hörich, Florian and Bläsing, Jürgen and Krost, Alois and et al.}, year={2012} }' chicago: Feneberg, Martin, Marcus Röppischer, Christoph Cobet, Norbert Esser, Jörg Schörmann, Thorsten Schupp, Donat Josef As, et al. “Optical Properties of Cubic GaN from 1 to 20 EV.” Physical Review B 85, no. 15 (2012). https://doi.org/10.1103/physrevb.85.155207. ieee: M. Feneberg et al., “Optical properties of cubic GaN from 1 to 20 eV,” Physical Review B, vol. 85, no. 15, 2012. mla: Feneberg, Martin, et al. “Optical Properties of Cubic GaN from 1 to 20 EV.” Physical Review B, vol. 85, no. 15, American Physical Society (APS), 2012, doi:10.1103/physrevb.85.155207. short: M. Feneberg, M. Röppischer, C. Cobet, N. Esser, J. Schörmann, T. Schupp, D.J. As, F. Hörich, J. Bläsing, A. Krost, R. Goldhahn, Physical Review B 85 (2012). date_created: 2018-08-30T14:00:50Z date_updated: 2022-01-06T07:00:56Z doi: 10.1103/physrevb.85.155207 intvolume: ' 85' issue: '15' publication: Physical Review B publication_identifier: issn: - 1098-0121 - 1550-235X publication_status: published publisher: American Physical Society (APS) status: public title: Optical properties of cubic GaN from 1 to 20 eV type: journal_article user_id: '14' volume: 85 year: '2012' ... --- _id: '4380' abstract: - lang: eng text: The structural and vibrational properties of lithium niobate (LN) – lithium tantalate (LT) mixed crystals (LNT, LiNb1-xTaxO3) are investigated over the whole composition range by first-principles simulations. The crystal volume grows roughly linearly from LT to LN, whereby the lattice parameters a and c show minor deviations from the Vegard behavior between the end compounds, LiNbO3 and LiTaO3. Our calculations in the framework of the density functional theory show the TO1, TO2 and TO4-modes to become harder with increasing Nb concentration. TO3 becomes softer with increasing Nb content, instead. The frequency shifts of the zone center A1-TO phonon modes for crystals with different compositions are found to be as large as 30 cm-1. Raman spectroscopy, which is sensitive to the A1 modes, can be therefore employed to determine the crystal composition. author: - first_name: Simone full_name: Sanna, Simone last_name: Sanna - first_name: Arthur full_name: Riefer, Arthur last_name: Riefer - first_name: Sergej full_name: Neufeld, Sergej last_name: Neufeld - first_name: Wolf Gero full_name: Schmidt, Wolf Gero last_name: Schmidt - first_name: Gerhard full_name: Berth, Gerhard id: '53' last_name: Berth - first_name: Alex full_name: Widhalm, Alex last_name: Widhalm - first_name: Artur full_name: Zrenner, Artur id: '606' last_name: Zrenner orcid: 0000-0002-5190-0944 citation: ama: 'Sanna S, Riefer A, Neufeld S, et al. Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals. In: Proceedings of ISAF-ECAPD-PFM 2012. ; 2012.' apa: Sanna, S., Riefer, A., Neufeld, S., Schmidt, W. G., Berth, G., Widhalm, A., & Zrenner, A. (2012). Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals. In Proceedings of ISAF-ECAPD-PFM 2012. Aveiro, Portugal. bibtex: '@inproceedings{Sanna_Riefer_Neufeld_Schmidt_Berth_Widhalm_Zrenner_2012, title={Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals}, booktitle={Proceedings of ISAF-ECAPD-PFM 2012}, author={Sanna, Simone and Riefer, Arthur and Neufeld, Sergej and Schmidt, Wolf Gero and Berth, Gerhard and Widhalm, Alex and Zrenner, Artur}, year={2012} }' chicago: Sanna, Simone, Arthur Riefer, Sergej Neufeld, Wolf Gero Schmidt, Gerhard Berth, Alex Widhalm, and Artur Zrenner. “Vibrational Fingerprints of LiNbO3-LiTaO3 Mixed Crystals.” In Proceedings of ISAF-ECAPD-PFM 2012, 2012. ieee: S. Sanna et al., “Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals,” in Proceedings of ISAF-ECAPD-PFM 2012, Aveiro, Portugal, 2012. mla: Sanna, Simone, et al. “Vibrational Fingerprints of LiNbO3-LiTaO3 Mixed Crystals.” Proceedings of ISAF-ECAPD-PFM 2012, 2012. short: 'S. Sanna, A. Riefer, S. Neufeld, W.G. Schmidt, G. Berth, A. Widhalm, A. Zrenner, in: Proceedings of ISAF-ECAPD-PFM 2012, 2012.' conference: end_date: 2012-07-13 location: Aveiro, Portugal name: 2012 INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS HELD JOINTLY WITH 11TH IEEE ECAPD AND IEEE PFM (ISAF/ECAPD/PFM) start_date: 2012-07-09 date_created: 2018-09-12T14:32:09Z date_updated: 2022-01-06T07:01:00Z department: - _id: '15' - _id: '230' - _id: '35' keyword: - Ferroelectrics - Vibrational properties - LiNbO3 - LiTaO3 - Mixed Crystals publication: Proceedings of ISAF-ECAPD-PFM 2012 status: public title: Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals type: conference user_id: '49428' year: '2012' ...