Donat Josef As
Center for Optoelectronics and Photonics (CeOPP)
Sonderforschungsbereich Transregio 142
d.as@uni-paderborn.deID
45 Publications
2023 | Journal Article | LibreCat-ID: 46573
E. Baron et al., “Time-resolved pump–probe spectroscopic ellipsometry of cubic GaN. I. Determination of the dielectric function,” Journal of Applied Physics, vol. 134, no. 7, 2023, doi: 10.1063/5.0153091.
LibreCat
| DOI
2023 | Journal Article | LibreCat-ID: 46132
M. Littmann, D. Reuter, and D. J. As, “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy,” physica status solidi (b), vol. 260, no. 7, 2023, doi: 10.1002/pssb.202300034.
LibreCat
| DOI
2023 | Journal Article | LibreCat-ID: 46741
M. F. Zscherp et al., “Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN,” ACS Applied Materials & Interfaces, vol. 15, no. 33, pp. 39513–39522, 2023, doi: 10.1021/acsami.3c06319.
LibreCat
| DOI
2022 | Journal Article | LibreCat-ID: 35232
F. Meier et al., “Selective Area Growth of Cubic Gallium Nitride in Nanoscopic Silicon Dioxide Masks,” physica status solidi (b), Art. no. 2200508, 2022, doi: 10.1002/pssb.202200508.
LibreCat
| DOI
2021 | Journal Article | LibreCat-ID: 25227 |

M. Hajlaoui et al., “Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures,” Scientific Reports, vol. 11, Art. no. 19081, 2021, doi: 10.1038/s41598-021-98569-6.
LibreCat
| DOI
| Download (ext.)
2021 | Journal Article | LibreCat-ID: 23843
F. Meier et al., “Selective area growth of cubic gallium nitride on silicon (001) and 3C-silicon carbide (001),” AIP Advances, Art. no. 075013, 2021, doi: 10.1063/5.0053865.
LibreCat
| DOI
2019 | Journal Article | LibreCat-ID: 15444 |

M. Deppe, T. Henksmeier, J. W. Gerlach, D. Reuter, and D. J. As, “Molecular Beam Epitaxy Growth and Characterization of Germanium‐Doped Cubic Al x Ga 1− x N,” physica status solidi (b), Art. no. 1900532, 2019, doi: 10.1002/pssb.201900532.
LibreCat
| DOI
| Download (ext.)
2018 | Journal Article | LibreCat-ID: 20588
S. Blumenthal, T. Rieger, D. Meertens, A. Pawlis, D. Reuter, and D. J. As, “Stacked Self-Assembled Cubic GaN Quantum Dots Grown by Molecular Beam Epitaxy,” physica status solidi (b), vol. 255, no. 3, p. 1600729, 2018, doi: https://doi.org/10.1002/pssb.201600729.
LibreCat
| DOI
2016 | Journal Article | LibreCat-ID: 7055
T. Wecker, G. Callsen, A. Hoffmann, D. Reuter, and D. J. As, “Photoluminescence excitation spectroscopy of excited states of an asymmetric cubic GaN/Al0.25Ga0.75N double quantum well grown by molecular beam epitaxy,” Japanese Journal of Applied Physics, vol. 55, no. 5S, 2016.
LibreCat
| DOI
2016 | Journal Article | LibreCat-ID: 3888
S. Blumenthal et al., “Fabrication and characterization of two-dimensional cubic AlN photonic crystal membranes containing zincblende GaN quantum dots,” physica status solidi (c), vol. 13, no. 5–6, pp. 292–296, 2016, doi: 10.1002/pssc.201600010.
LibreCat
| Files available
| DOI
2016 | Journal Article | LibreCat-ID: 4240
M. Rüsing, T. Wecker, G. Berth, D. J. As, and A. Zrenner, “Joint Raman spectroscopy and HRXRD investigation of cubic gallium nitride layers grown on 3C-SiC,” physica status solidi (b), vol. 253, no. 4, pp. 778–782, 2016, doi: 10.1002/pssb.201552592.
LibreCat
| DOI
2014 | Journal Article | LibreCat-ID: 4064
L. Hiller, T. Stauden, R. M. Kemper, J. Lindner, D. J. As, and J. Pezoldt, “Hydrogen Effects in ECR-Etching of 3C-SiC(100) Mesa Structures,” Materials Science Forum, vol. 778–780, pp. 730–733, 2014, doi: 10.4028/www.scientific.net/msf.778-780.730.
LibreCat
| Files available
| DOI
2013 | Journal Article | LibreCat-ID: 3963 |

M. Bürger, M. Ruth, S. Declair, J. Förstner, C. Meier, and D. J. As, “Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots,” Applied Physics Letters, vol. 102, no. 8, p. 081105, 2013.
LibreCat
| Files available
| DOI
2013 | Journal Article | LibreCat-ID: 13524
M. Landmann et al., “Transition energies and direct-indirect band gap crossing in zinc-blende AlxGa1−xN,” Physical Review B, vol. 87, no. 19, 2013, doi: 10.1103/physrevb.87.195210.
LibreCat
| DOI
2012 | Journal Article | LibreCat-ID: 4116
L. Hiller, T. Stauden, R. M. Kemper, J. Lindner, D. J. As, and J. Pezoldt, “ECR-Ectching of Submicron and Nanometer Sized 3C-SiC(100) Mesa Structures,” Materials Science Forum, vol. 717–720, pp. 901–904, 2012, doi: 10.4028/www.scientific.net/msf.717-720.901.
LibreCat
| Files available
| DOI
2011 | Journal Article | LibreCat-ID: 4146
R. Maria Kemper et al., “Anti-phase domains in cubic GaN,” Journal of Applied Physics, vol. 110, no. 12, Art. no. 123512, 2011, doi: 10.1063/1.3666050.
LibreCat
| Files available
| DOI
2009 | Conference Paper | LibreCat-ID: 4218
D. J. As, E. Tschumak, I. Laubenstein, R. M. Kemper, and K. Lischka, “Schottky and Ohmic Contacts on Non-Polar Cubic GaN Epilayers,” in Materials Research Society Symposium Proceedings, 2009, vol. 1108, pp. 3–8, doi: 10.1557/proc-1108-a01-02.
LibreCat
| DOI
45 Publications
2023 | Journal Article | LibreCat-ID: 46573
E. Baron et al., “Time-resolved pump–probe spectroscopic ellipsometry of cubic GaN. I. Determination of the dielectric function,” Journal of Applied Physics, vol. 134, no. 7, 2023, doi: 10.1063/5.0153091.
LibreCat
| DOI
2023 | Journal Article | LibreCat-ID: 46132
M. Littmann, D. Reuter, and D. J. As, “Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy,” physica status solidi (b), vol. 260, no. 7, 2023, doi: 10.1002/pssb.202300034.
LibreCat
| DOI
2023 | Journal Article | LibreCat-ID: 46741
M. F. Zscherp et al., “Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN,” ACS Applied Materials & Interfaces, vol. 15, no. 33, pp. 39513–39522, 2023, doi: 10.1021/acsami.3c06319.
LibreCat
| DOI
2022 | Journal Article | LibreCat-ID: 35232
F. Meier et al., “Selective Area Growth of Cubic Gallium Nitride in Nanoscopic Silicon Dioxide Masks,” physica status solidi (b), Art. no. 2200508, 2022, doi: 10.1002/pssb.202200508.
LibreCat
| DOI
2021 | Journal Article | LibreCat-ID: 25227 |

M. Hajlaoui et al., “Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures,” Scientific Reports, vol. 11, Art. no. 19081, 2021, doi: 10.1038/s41598-021-98569-6.
LibreCat
| DOI
| Download (ext.)
2021 | Journal Article | LibreCat-ID: 23843
F. Meier et al., “Selective area growth of cubic gallium nitride on silicon (001) and 3C-silicon carbide (001),” AIP Advances, Art. no. 075013, 2021, doi: 10.1063/5.0053865.
LibreCat
| DOI
2019 | Journal Article | LibreCat-ID: 15444 |

M. Deppe, T. Henksmeier, J. W. Gerlach, D. Reuter, and D. J. As, “Molecular Beam Epitaxy Growth and Characterization of Germanium‐Doped Cubic Al x Ga 1− x N,” physica status solidi (b), Art. no. 1900532, 2019, doi: 10.1002/pssb.201900532.
LibreCat
| DOI
| Download (ext.)
2018 | Journal Article | LibreCat-ID: 20588
S. Blumenthal, T. Rieger, D. Meertens, A. Pawlis, D. Reuter, and D. J. As, “Stacked Self-Assembled Cubic GaN Quantum Dots Grown by Molecular Beam Epitaxy,” physica status solidi (b), vol. 255, no. 3, p. 1600729, 2018, doi: https://doi.org/10.1002/pssb.201600729.
LibreCat
| DOI
2016 | Journal Article | LibreCat-ID: 7055
T. Wecker, G. Callsen, A. Hoffmann, D. Reuter, and D. J. As, “Photoluminescence excitation spectroscopy of excited states of an asymmetric cubic GaN/Al0.25Ga0.75N double quantum well grown by molecular beam epitaxy,” Japanese Journal of Applied Physics, vol. 55, no. 5S, 2016.
LibreCat
| DOI
2016 | Journal Article | LibreCat-ID: 3888
S. Blumenthal et al., “Fabrication and characterization of two-dimensional cubic AlN photonic crystal membranes containing zincblende GaN quantum dots,” physica status solidi (c), vol. 13, no. 5–6, pp. 292–296, 2016, doi: 10.1002/pssc.201600010.
LibreCat
| Files available
| DOI
2016 | Journal Article | LibreCat-ID: 4240
M. Rüsing, T. Wecker, G. Berth, D. J. As, and A. Zrenner, “Joint Raman spectroscopy and HRXRD investigation of cubic gallium nitride layers grown on 3C-SiC,” physica status solidi (b), vol. 253, no. 4, pp. 778–782, 2016, doi: 10.1002/pssb.201552592.
LibreCat
| DOI
2014 | Journal Article | LibreCat-ID: 4064
L. Hiller, T. Stauden, R. M. Kemper, J. Lindner, D. J. As, and J. Pezoldt, “Hydrogen Effects in ECR-Etching of 3C-SiC(100) Mesa Structures,” Materials Science Forum, vol. 778–780, pp. 730–733, 2014, doi: 10.4028/www.scientific.net/msf.778-780.730.
LibreCat
| Files available
| DOI
2013 | Journal Article | LibreCat-ID: 3963 |

M. Bürger, M. Ruth, S. Declair, J. Förstner, C. Meier, and D. J. As, “Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots,” Applied Physics Letters, vol. 102, no. 8, p. 081105, 2013.
LibreCat
| Files available
| DOI
2013 | Journal Article | LibreCat-ID: 13524
M. Landmann et al., “Transition energies and direct-indirect band gap crossing in zinc-blende AlxGa1−xN,” Physical Review B, vol. 87, no. 19, 2013, doi: 10.1103/physrevb.87.195210.
LibreCat
| DOI
2012 | Journal Article | LibreCat-ID: 4116
L. Hiller, T. Stauden, R. M. Kemper, J. Lindner, D. J. As, and J. Pezoldt, “ECR-Ectching of Submicron and Nanometer Sized 3C-SiC(100) Mesa Structures,” Materials Science Forum, vol. 717–720, pp. 901–904, 2012, doi: 10.4028/www.scientific.net/msf.717-720.901.
LibreCat
| Files available
| DOI
2011 | Journal Article | LibreCat-ID: 4146
R. Maria Kemper et al., “Anti-phase domains in cubic GaN,” Journal of Applied Physics, vol. 110, no. 12, Art. no. 123512, 2011, doi: 10.1063/1.3666050.
LibreCat
| Files available
| DOI
2009 | Conference Paper | LibreCat-ID: 4218
D. J. As, E. Tschumak, I. Laubenstein, R. M. Kemper, and K. Lischka, “Schottky and Ohmic Contacts on Non-Polar Cubic GaN Epilayers,” in Materials Research Society Symposium Proceedings, 2009, vol. 1108, pp. 3–8, doi: 10.1557/proc-1108-a01-02.
LibreCat
| DOI