@article{33682, author = {{Khazaei, Mohammad and Ranjbar, Ahmad and Kang, Yoon‐Gu and Liang, Yunye and Khaledialidusti, Rasoul and Bae, Soungmin and Raebiger, Hannes and Wang, Vei and Han, Myung Joon and Mizoguchi, Hiroshi and Bahramy, Mohammad S. and Kühne, Thomas and Belosludov, Rodion V. and Ohno, Kaoru and Hosono, Hideo}}, issn = {{1616-301X}}, journal = {{Advanced Functional Materials}}, keywords = {{Electrochemistry, Condensed Matter Physics, Biomaterials, Electronic, Optical and Magnetic Materials}}, number = {{20}}, publisher = {{Wiley}}, title = {{{Electronic Structures of Group III–V Element Haeckelite Compounds: A Novel Family of Semiconductors, Dirac Semimetals, and Topological Insulators}}}, doi = {{10.1002/adfm.202110930}}, volume = {{32}}, year = {{2022}}, } @article{33690, author = {{Ibaceta-Jaña, Josefa and Chugh, Manjusha and Novikov, Alexander S. and Mirhosseini, Hossein and Kühne, Thomas and Szyszka, Bernd and Wagner, Markus R. and Muydinov, Ruslan}}, issn = {{1932-7447}}, journal = {{The Journal of Physical Chemistry C}}, keywords = {{Surfaces, Coatings and Films, Physical and Theoretical Chemistry, General Energy, Electronic, Optical and Magnetic Materials}}, number = {{38}}, pages = {{16215--16226}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Do Lead Halide Hybrid Perovskites Have Hydrogen Bonds?}}}, doi = {{10.1021/acs.jpcc.2c02984}}, volume = {{126}}, year = {{2022}}, } @article{33683, author = {{Lepre, Enrico and Heske, Julian Joachim and Nowakowski, Michal and Scoppola, Ernesto and Zizak, Ivo and Heil, Tobias and Kühne, Thomas and Antonietti, Markus and López-Salas, Nieves and Albero, Josep}}, issn = {{2211-2855}}, journal = {{Nano Energy}}, keywords = {{Electrical and Electronic Engineering, General Materials Science, Renewable Energy, Sustainability and the Environment}}, publisher = {{Elsevier BV}}, title = {{{Ni-based electrocatalysts for unconventional CO2 reduction reaction to formic acid}}}, doi = {{10.1016/j.nanoen.2022.107191}}, volume = {{97}}, year = {{2022}}, } @article{33694, abstract = {{Abstract The round robin test investigated the reliability users can expect for AlSi10Mg additive manufactured specimens by laser powder bed fusion through examining powder quality, process parameter, microstructure defects, strength and fatigue. Besides for one outlier, expected static material properties could be found. Optical microstructure inspection was beneficial to determine true porosity and porosity types to explain the occurring scatter in properties. Fractographic analyses reveal that the fatigue crack propagation starts at the rough as-built surface for all specimens. Statistical analysis of the scatter in fatigue using statistical derived safety factors concludes that at a stress of 36.87 MPa the fatigue limit of 107 cycles could be reached for all specimen with a survival probability of 99.999 %.}}, author = {{Schneider, M. and Bettge, D. and Binder, M. and Dollmeier, K. and Dreyer, Malte and Hilgenberg, K. and Klöden, B. and Schlingmann, T. and Schmidt, J.}}, issn = {{2195-8599}}, journal = {{Practical Metallography}}, keywords = {{Metals and Alloys, Mechanics of Materials, Condensed Matter Physics, Electronic, Optical and Magnetic Materials}}, number = {{10}}, pages = {{580--614}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Reproducibility and Scattering in Additive Manufacturing: Results from a Round Robin on PBF-LB/M AlSi10Mg Alloy}}}, doi = {{10.1515/pm-2022-1018}}, volume = {{59}}, year = {{2022}}, } @article{35232, author = {{Meier, Falco and Littmann, Mario and Bürger, Julius and Riedl, Thomas and Kool, Daniel and Lindner, Jörg and Reuter, Dirk and As, Donat Josef}}, issn = {{0370-1972}}, journal = {{physica status solidi (b)}}, keywords = {{Condensed Matter Physics, Electronic, Optical and Magnetic Materials}}, publisher = {{Wiley}}, title = {{{Selective Area Growth of Cubic Gallium Nitride in Nanoscopic Silicon Dioxide Masks}}}, doi = {{10.1002/pssb.202200508}}, year = {{2022}}, } @article{35586, author = {{Protte, Marius and Fahr, Rene and Quevedo, Daniel E.}}, issn = {{1066-033X}}, journal = {{IEEE Control Systems}}, keywords = {{Electrical and Electronic Engineering, Modeling and Simulation, Control and Systems Engineering, Electrical and Electronic Engineering, Modeling and Simulation, Control and Systems Engineering}}, number = {{6}}, pages = {{57--76}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Behavioral Economics for Human-in-the-Loop Control Systems Design: Overconfidence and the Hot Hand Fallacy}}}, doi = {{10.1109/mcs.2020.3019723}}, volume = {{40}}, year = {{2022}}, } @article{33671, abstract = {{Abstract We demonstrate the fabrication of micron-wide tungsten silicide superconducting nanowire single-photon detectors on a silicon substrate using laser lithography. We show saturated internal detection efficiencies with wire widths ranging from 0.59 µm to 1.43 µm under illumination at 1550 nm. We demonstrate both straight wires, as well as meandered structures. Single-photon sensitivity is shown in devices up to 4 mm in length. Laser-lithographically written devices allow for fast and easy structuring of large areas while maintaining a saturated internal efficiency for wire widths around 1 µm.}}, author = {{Protte, Maximilian and Verma, Varun B and Höpker, Jan Philipp and Mirin, Richard P and Woo Nam, Sae and Bartley, Tim}}, issn = {{0953-2048}}, journal = {{Superconductor Science and Technology}}, keywords = {{Materials Chemistry, Electrical and Electronic Engineering, Metals and Alloys, Condensed Matter Physics, Ceramics and Composites}}, number = {{5}}, publisher = {{IOP Publishing}}, title = {{{Laser-lithographically written micron-wide superconducting nanowire single-photon detectors}}}, doi = {{10.1088/1361-6668/ac5338}}, volume = {{35}}, year = {{2022}}, } @article{30342, author = {{Lange, Nina Amelie and Höpker, Jan Philipp and Ricken, Raimund and Quiring, Viktor and Eigner, Christof and Silberhorn, Christine and Bartley, Tim}}, issn = {{2334-2536}}, journal = {{Optica}}, keywords = {{Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials}}, number = {{1}}, publisher = {{The Optical Society}}, title = {{{Cryogenic integrated spontaneous parametric down-conversion}}}, doi = {{10.1364/optica.445576}}, volume = {{9}}, year = {{2022}}, } @article{33672, abstract = {{Abstract Lithium niobate is a promising platform for integrated quantum optics. In this platform, we aim to efficiently manipulate and detect quantum states by combining superconducting single photon detectors and modulators. The cryogenic operation of a superconducting single photon detector dictates the optimisation of the electro-optic modulators under the same operating conditions. To that end, we characterise a phase modulator, directional coupler, and polarisation converter at both ambient and cryogenic temperatures. The operation voltage V π / 2 of these modulators increases, due to the decrease in the electro-optic effect, by 74% for the phase modulator, 84% for the directional coupler and 35% for the polarisation converter below 8.5 K . The phase modulator preserves its broadband nature and modulates light in the characterised wavelength range. The unbiased bar state of the directional coupler changed by a wavelength shift of 85 n m while cooling the device down to 5 K . The polarisation converter uses periodic poling to phasematch the two orthogonal polarisations. The phasematched wavelength of the utilised poling changes by 112 n m when cooling to 5 K .}}, author = {{Thiele, Frederik and vom Bruch, Felix and Brockmeier, Julian and Protte, Maximilian and Hummel, Thomas and Ricken, Raimund and Quiring, Viktor and Lengeling, Sebastian and Herrmann, Harald and Eigner, Christof and Silberhorn, Christine and Bartley, Tim}}, issn = {{2515-7647}}, journal = {{Journal of Physics: Photonics}}, keywords = {{Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials}}, number = {{3}}, publisher = {{IOP Publishing}}, title = {{{Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides}}}, doi = {{10.1088/2515-7647/ac6c63}}, volume = {{4}}, year = {{2022}}, } @article{30863, abstract = {{Abstract In this paper a measurement procedure to identify viscoelastic material parameters of plate-like samples using broadband ultrasonic waves is presented. Ultrasonic Lamb waves are excited via the thermoelastic effect using laser radiation and detected by a piezoelectric transducer. The resulting measurement data is transformed to yield information about multiple propagating Lamb waves as well as their attenuation. These results are compared to simulation results in an inverse procedure to identify the parameters of an elastic and a viscoelastic material model.}}, author = {{Johannesmann, Sarah and Claes, Leander and Feldmann, Nadine and Zeipert, Henning and Henning, Bernd}}, issn = {{2196-7113}}, journal = {{tm - Technisches Messen}}, keywords = {{Electrical and Electronic Engineering, Instrumentation}}, number = {{7 - 8}}, pages = {{493 -- 506}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Lamb wave based approach to the determination of acoustic material parameters}}}, doi = {{10.1515/teme-2021-0134}}, volume = {{89}}, year = {{2022}}, } @article{53266, author = {{Soleymani, Mohammad and Santamaria, Ignacio and Jorswieck, Eduard A.}}, issn = {{0018-9545}}, journal = {{IEEE Transactions on Vehicular Technology}}, keywords = {{Electrical and Electronic Engineering, Computer Networks and Communications, Aerospace Engineering, Automotive Engineering}}, number = {{4}}, pages = {{4580--4597}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Rate Splitting in MIMO RIS-Assisted Systems With Hardware Impairments and Improper Signaling}}}, doi = {{10.1109/tvt.2022.3222633}}, volume = {{72}}, year = {{2022}}, } @article{33869, author = {{Bonnard, B. and Cots, O. and Gergaud, J. and Wembe Moafo, Boris Edgar}}, issn = {{0167-6911}}, journal = {{Systems & Control Letters}}, keywords = {{Electrical and Electronic Engineering, Mechanical Engineering, General Computer Science, Control and Systems Engineering}}, publisher = {{Elsevier BV}}, title = {{{Abnormal geodesics in 2D-Zermelo navigation problems in the case of revolution and the fan shape of the small time balls}}}, doi = {{10.1016/j.sysconle.2022.105140}}, volume = {{161}}, year = {{2022}}, } @article{40564, abstract = {{The reported N-doped noble carbonaceous support provides strong stabilization of Mn(ii) sub-nanometric active sites as well as a convenient coordination environment to produce CO, HCOOH and CH3COOH from electrochemical CO2 reduction.}}, author = {{Kossmann, Janina and Sánchez-Manjavacas, Maria Luz Ortiz and Brandt, Jessica and Heil, Tobias and Lopez Salas, Nieves and Albero, Josep}}, issn = {{1359-7345}}, journal = {{Chemical Communications}}, keywords = {{Materials Chemistry, Metals and Alloys, Surfaces, Coatings and Films, General Chemistry, Ceramics and Composites, Electronic, Optical and Magnetic Materials, Catalysis}}, number = {{31}}, pages = {{4841--4844}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Mn(ii) sub-nanometric site stabilization in noble, N-doped carbonaceous materials for electrochemical CO2 reduction}}}, doi = {{10.1039/d2cc00585a}}, volume = {{58}}, year = {{2022}}, } @article{40561, author = {{Lepre, Enrico and Heske, Julian and Nowakowski, Michal and Scoppola, Ernesto and Zizak, Ivo and Heil, Tobias and Kühne, Thomas D. and Antonietti, Markus and Lopez Salas, Nieves and Albero, Josep}}, issn = {{2211-2855}}, journal = {{Nano Energy}}, keywords = {{Electrical and Electronic Engineering, General Materials Science, Renewable Energy, Sustainability and the Environment}}, publisher = {{Elsevier BV}}, title = {{{Ni-based electrocatalysts for unconventional CO2 reduction reaction to formic acid}}}, doi = {{10.1016/j.nanoen.2022.107191}}, volume = {{97}}, year = {{2022}}, } @article{41320, author = {{Lepre, Enrico and Heske, Julian and Nowakowski, Michal and Scoppola, Ernesto and Zizak, Ivo and Heil, Tobias and Kühne, Thomas D. and Antonietti, Markus and López-Salas, Nieves and Albero, Josep}}, issn = {{2211-2855}}, journal = {{Nano Energy}}, keywords = {{Electrical and Electronic Engineering, General Materials Science, Renewable Energy, Sustainability and the Environment}}, publisher = {{Elsevier BV}}, title = {{{Ni-based electrocatalysts for unconventional CO2 reduction reaction to formic acid}}}, doi = {{10.1016/j.nanoen.2022.107191}}, volume = {{97}}, year = {{2022}}, } @article{35707, abstract = {{The proton conductivity of two coordination networks, [Mg(H2O)2(H3L)]·H2O and [Pb2(HL)]·H2O (H5L = (H2O3PCH2)2-NCH2-C6H4-SO3H), is investigated by AC impedance spectroscopy. Both materials contain the same phosphonato-sulfonate linker molecule, but have clearly different crystal structures, which has a strong effect on proton conductivity. In the Mg-based coordination network, dangling sulfonate groups are part of an extended hydrogen bonding network, facilitating a “proton hopping” with low activation energy; the material shows a moderate proton conductivity. In the Pb-based metal-organic framework, in contrast, no extended hydrogen bonding occurs, as the sulfonate groups coordinate to Pb2+, without forming hydrogen bonds; the proton conductivity is much lower in this material.}}, author = {{Javed, Ali and Steinke, Felix and Wöhlbrandt, Stephan and Bunzen, Hana and Stock, Norbert and Tiemann, Michael}}, issn = {{2190-4286}}, journal = {{Beilstein Journal of Nanotechnology}}, keywords = {{Electrical and Electronic Engineering, General Physics and Astronomy, General Materials Science}}, pages = {{437--443}}, publisher = {{Beilstein Institut}}, title = {{{The role of sulfonate groups and hydrogen bonding in the proton conductivity of two coordination networks}}}, doi = {{10.3762/bjnano.13.36}}, volume = {{13}}, year = {{2022}}, } @article{44163, author = {{Rehlaender, Philipp and Wallscheid, Oliver and Schafmeister, Frank and Böcker, Joachim}}, issn = {{0885-8993}}, journal = {{IEEE Transactions on Power Electronics}}, keywords = {{Electrical and Electronic Engineering}}, number = {{11}}, pages = {{13413--13427}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto}}}, doi = {{10.1109/tpel.2022.3180758}}, volume = {{37}}, year = {{2022}}, } @article{37656, author = {{Glahn, Luis Joel and Ruiz Alvarado, Isaac Azahel and Neufeld, Sergej and Zare Pour, Mohammad Amin and Paszuk, Agnieszka and Ostheimer, David and Shekarabi, Sahar and Romanyuk, Oleksandr and Moritz, Dominik Christian and Hofmann, Jan Philipp and Jaegermann, Wolfram and Hannappel, Thomas and Schmidt, Wolf Gero}}, issn = {{0370-1972}}, journal = {{physica status solidi (b)}}, keywords = {{Condensed Matter Physics, Electronic, Optical and Magnetic Materials}}, number = {{11}}, publisher = {{Wiley}}, title = {{{Clean and Hydrogen‐Adsorbed AlInP(001) Surfaces: Structures and Electronic Properties}}}, doi = {{10.1002/pssb.202200308}}, volume = {{259}}, year = {{2022}}, } @article{34000, abstract = {{Abstract This paper presents the characterization of the microstructure evolution during flow forming of austenitic stainless steel AISI 304L. Due to plastic deformation of metastable austenitic steel, phase transformation from γ-austenite into α’-martensite occurs. This is initiated by the formation of shear bands as product of the external stresses. By means of coupled microscopic and micromagnetic investigations, a characterization of the microstructure was carried out. In particular, this study shows the distribution of the strain-induced α’-martensite and its influence on material properties like hardness at different depths. The microstructural analyses by means of electron backscattered diffraction (EBSD) technique, evidence a higher amount of α’-martensite (ca. 23 %) close to the outer specimen surface, where the plastic deformation and the direct contact with the forming tool take place. In the middle area (ca. 1.5 mm depth from the outer surface), the portion of transformed α’-martensite drops to 7 % and in the inner surface to 2 %. These results are well correlated with microhardness and micromagnetic measurements at different depths. EBSD and atomic force microscopy (AFM) were used to make a detailed characterization of the topography and degree of deformation of the shear bands. Likewise, the mechanisms of nucleation of α’-martensite were discussed. This research contributes to the development of micromagnetic sensors to monitor the evolution of properties during flow forming. This makes them more suitable for closed-loop property control, which offers possibilities for an application-oriented and more efficient production.}}, author = {{Rozo Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}}, issn = {{2195-8599}}, journal = {{Practical Metallography}}, keywords = {{Metals and Alloys, Mechanics of Materials, Condensed Matter Physics, Electronic, Optical and Magnetic Materials}}, number = {{11}}, pages = {{660--675}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming}}}, doi = {{10.1515/pm-2022-0064}}, volume = {{59}}, year = {{2022}}, } @article{47961, abstract = {{Due to failures or even the absence of an electricity grid, microgrid systems are becoming popular solutions for electrifying African rural communities. However, they are heavily stressed and complex to control due to their intermittency and demand growth. Demand side management (DSM) serves as an option to increase the level of flexibility on the demand side by scheduling users’ consumption patterns profiles in response to supply. This paper proposes a demand-side management strategy based on load shifting and peak clipping. The proposed approach was modelled in a MATLAB/Simulink R2021a environment and was optimized using the artificial neural network (ANN) algorithm. Simulations were carried out to test the model’s efficacy in a stand-alone PV-battery microgrid in East Africa. The proposed algorithm reduces the peak demand, smoothing the load profile to the desired level, and improves the system’s peak to average ratio (PAR). The presence of deferrable loads has been considered to bring more flexible demand-side management. Results promise decreases in peak demand and peak to average ratio of about 31.2% and 7.5% through peak clipping. In addition, load shifting promises more flexibility to customers.}}, author = {{Philipo, Godiana Hagile and Kakande, Josephine Nakato and Krauter, Stefan}}, issn = {{1996-1073}}, journal = {{Energies}}, keywords = {{Energy (miscellaneous), Energy Engineering and Power Technology, Renewable Energy, Sustainability and the Environment, Electrical and Electronic Engineering, Control and Optimization, Engineering (miscellaneous), Building and Construction}}, number = {{14}}, publisher = {{MDPI AG}}, title = {{{Neural Network-Based Demand-Side Management in a Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting and Peak-Clipping}}}, doi = {{10.3390/en15145215}}, volume = {{15}}, year = {{2022}}, }