Dr. Jonas Lähnemann

Spatially-resolved luminescence and crystal structure of single core-shell nanowires measured in the as-grown geometry

@article{ author = { A. AlHassan and J. Lähnemann and S. Leake and H. Küpers and M. Niehle and D. Bahrami and F. Bertram and R. B. Lewis and A. Davtyan and T. U. Schülli and L. Geelhaar and U. Pietsch }, title = { Spatially-resolved luminescence and crystal structure of single core-shell nanowires measured in the as-grown geometry }, journal = { Nanotechnology }, volume = { 31 }, year = { 2020 }, pages = { 214002 } }

TY - JOUR AU - A. AlHassan AU - J. Lähnemann AU - S. Leake AU - H. Küpers AU - M. Niehle AU - D. Bahrami AU - F. Bertram AU - R. B. Lewis AU - A. Davtyan AU - T. U. Schülli AU - L. Geelhaar AU - U. Pietsch TI - Spatially-resolved luminescence and crystal structure of single core-shell nanowires measured in the as-grown geometry JF - Nanotechnology JA - Nanotechnol. J1 - NAN VL - 31 SP - 214002 PY - 2020/03/10

Self-assembly of well-separated AlN nanowires directly on sputtered metallic TiN films

@article{ author = { M. Azadmand and T. Auzelle and J. Lähnemann and G. Gao and L. Nicolai and M. Ramsteiner and A. Trampert and S. Sanguinetti and O. Brandt and L. Geelhaar }, title = { Self-assembly of well-separated AlN nanowires directly on sputtered metallic TiN films }, journal = { Physica Status Solidi Rapid Research Letters }, volume = { 14 }, year = { 2020 }, pages = { 1900615 } }

TY - JOUR AU - M. Azadmand AU - T. Auzelle AU - J. Lähnemann AU - G. Gao AU - L. Nicolai AU - M. Ramsteiner AU - A. Trampert AU - S. Sanguinetti AU - O. Brandt AU - L. Geelhaar TI - Self-assembly of well-separated AlN nanowires directly on sputtered metallic TiN films JF - Physica Status Solidi Rapid Research Letters JA - Phys. Status Solidi RRL J1 - VL - 14 SP - 1900615 PY - 2020/03/01

Assessment of AlGaN/AlN superlattices on GaN nanowires as active region of electron-pumped ultraviolet sources

@article{ author = { I. Dimkou and A. Harikumar and F. Donatini and J. Lähnemann and M. I. den Hertog and C. Bougerol and E. Bellet-Amalric and N. Mollard and A. Ajay and G. Ledoux and S. T. Purcell and E. Monroy }, title = { Assessment of AlGaN/AlN superlattices on GaN nanowires as active region of electron-pumped ultraviolet sources }, journal = { Nanotechnology }, volume = { 31 }, year = { 2020 }, pages = { 204001 } }

TY - JOUR AU - I. Dimkou AU - A. Harikumar AU - F. Donatini AU - J. Lähnemann AU - M. I. den Hertog AU - C. Bougerol AU - E. Bellet-Amalric AU - N. Mollard AU - A. Ajay AU - G. Ledoux AU - S. T. Purcell AU - E. Monroy TI - Assessment of AlGaN/AlN superlattices on GaN nanowires as active region of electron-pumped ultraviolet sources JF - Nanotechnology JA - Nanotechnol. J1 - NAN VL - 31 SP - 204001 PY - 2020/02/27

Coaxial GaAs/(In,Ga)As dot-in-a-well nanowire heterostructures for electrically driven infrared light generation on Si in the telecommunication O band

@article{ author = { J. Herranz and P. Corfdir and E. Luna and U. Jahn and R. B. Lewis and L. Schrottke and J. Lähnemann and A. Tahraoui and A. Trampert and O. Brandt and L. Geelhaar }, title = { Coaxial GaAs/(In,Ga)As dot-in-a-well nanowire heterostructures for electrically driven infrared light generation on Si in the telecommunication O band }, journal = { ACS Applied Nano Materials }, volume = { 3 }, year = { 2020 }, pages = { 165 } }

TY - JOUR AU - J. Herranz AU - P. Corfdir AU - E. Luna AU - U. Jahn AU - R. B. Lewis AU - L. Schrottke AU - J. Lähnemann AU - A. Tahraoui AU - A. Trampert AU - O. Brandt AU - L. Geelhaar TI - Coaxial GaAs/(In,Ga)As dot-in-a-well nanowire heterostructures for electrically driven infrared light generation on Si in the telecommunication O band JF - ACS Applied Nano Materials JA - ACS Appl. Nano Mater. J1 - VL - 3 SP - 165 PY - 2020/01/24

Plasma-assisted molecular beam epitaxy of NiO on GaN(00.1)

@article{ author = { M. Budde and T. Remmele and C. Tschammer and J. Feldl and P. Franz and J. Lähnemann and Z. Cheng and M. Hanke and M. Ramsteiner and M. Albrecht and O. Bierwagen }, title = { Plasma-assisted molecular beam epitaxy of NiO on GaN(00.1) }, journal = { Journal of Applied Physics }, volume = { 127 }, year = { 2020 }, pages = { 015306 } }

TY - JOUR AU - M. Budde AU - T. Remmele AU - C. Tschammer AU - J. Feldl AU - P. Franz AU - J. Lähnemann AU - Z. Cheng AU - M. Hanke AU - M. Ramsteiner AU - M. Albrecht AU - O. Bierwagen TI - Plasma-assisted molecular beam epitaxy of NiO on GaN(00.1) JF - Journal of Applied Physics JA - J. Appl. Phys. J1 - JAP VL - 127 SP - 015306 PY - 2020/01/06

The electrical conductivity tensor of beta-Ga2O3 analyzed by van der Pauw measurements: Inherent anisotropy, off-diagonal element, and the impact of grain boundaries

@article{ author = { C. Golz and Z. Galazka and J. Lähnemann and V. Hortelano and F. Hatami and W.T. Masselink and O. Bierwagen }, title = { The electrical conductivity tensor of beta-Ga2O3 analyzed by van der Pauw measurements: Inherent anisotropy, off-diagonal element, and the impact of grain boundaries }, journal = { Physical Review Materials }, volume = { 3 }, year = { 2019 }, pages = { 124604 } }

TY - JOUR AU - C. Golz AU - Z. Galazka AU - J. Lähnemann AU - V. Hortelano AU - F. Hatami AU - W.T. Masselink AU - O. Bierwagen TI - The electrical conductivity tensor of beta-Ga2O3 analyzed by van der Pauw measurements: Inherent anisotropy, off-diagonal element, and the impact of grain boundaries JF - Physical Review Materials JA - Phys. Rev. Mater. J1 - VL - 3 SP - 124604 PY - 2019/12/27

Determination of the Carrier Diffusion Length in GaN from Cathodoluminescence Maps Around Threading Dislocations: Fallacies and Opportunities

@article{ author = { V. M. Kaganer and J. Lähnemann and C. Pfüller and K. Sabelfeld and A. Kireeva and O. Brandt }, title = { Determination of the Carrier Diffusion Length in GaN from Cathodoluminescence Maps Around Threading Dislocations: Fallacies and Opportunities }, journal = { Physical Review Applied }, volume = { 12 }, year = { 2019 }, pages = { 054038 } }

TY - JOUR AU - V. M. Kaganer AU - J. Lähnemann AU - C. Pfüller AU - K. Sabelfeld AU - A. Kireeva AU - O. Brandt TI - Determination of the Carrier Diffusion Length in GaN from Cathodoluminescence Maps Around Threading Dislocations: Fallacies and Opportunities JF - Physical Review Applied JA - Phys. Rev. Applied J1 - VL - 12 SP - 054038 PY - 2019/11/15

Absence of quantum-confined Stark effect in GaN quantum disks embedded in (Al,Ga)N nanowires grown by molecular beam epitaxy

@article{ author = { C. Sinito and P. Corfdir and C. Pfüller and G. Gao and J. Bartolomé Vílchez and S. Kölling and A. Rodil Doblado and U. Jahn and J. Lähnemann and T. Auzelle and J. K. Zettler and T. Flissikowski and P. Koenraad and H. T. Grahn and L. Geelhaar and S. Fernández-Garrido and O. Brandt }, title = { Absence of quantum-confined Stark effect in GaN quantum disks embedded in (Al,Ga)N nanowires grown by molecular beam epitaxy }, journal = { Nano Letters }, volume = { 19 }, year = { 2019 }, pages = { 5938 } }

TY - JOUR AU - C. Sinito AU - P. Corfdir AU - C. Pfüller AU - G. Gao AU - J. Bartolomé Vílchez AU - S. Kölling AU - A. Rodil Doblado AU - U. Jahn AU - J. Lähnemann AU - T. Auzelle AU - J. K. Zettler AU - T. Flissikowski AU - P. Koenraad AU - H. T. Grahn AU - L. Geelhaar AU - S. Fernández-Garrido AU - O. Brandt TI - Absence of quantum-confined Stark effect in GaN quantum disks embedded in (Al,Ga)N nanowires grown by molecular beam epitaxy JF - Nano Letters JA - Nano Lett. J1 - VL - 19 SP - 5938 PY - 2019/08/06

Electroluminescence and current-voltage measurements of single (In,Ga)N/GaN nanowire light-emitting diodes in the nanowire ensemble

@article{ author = { D. v. Treeck and J. Ledig and G. Scholz and J. Lähnemann and M. Musolino and A. Tahraoui and O. Brandt and A. Waag and H. Riechert and L. Geelhaar }, title = { Electroluminescence and current-voltage measurements of single (In,Ga)N/GaN nanowire light-emitting diodes in the nanowire ensemble }, journal = { Beilstein Journal of Nanotechnology }, volume = { 10 }, year = { 2019 }, pages = { 1177 } }

TY - JOUR AU - D. v. Treeck AU - J. Ledig AU - G. Scholz AU - J. Lähnemann AU - M. Musolino AU - A. Tahraoui AU - O. Brandt AU - A. Waag AU - H. Riechert AU - L. Geelhaar TI - Electroluminescence and current-voltage measurements of single (In,Ga)N/GaN nanowire light-emitting diodes in the nanowire ensemble JF - Beilstein Journal of Nanotechnology JA - Beilstein J. Nanotechnol. J1 - VL - 10 SP - 1177 PY - 2019/06/05

Correlated nanoscale analysis of the emission from wurtzite versus zincblende (In,Ga)As/GaAs nanowire core-shell quantum wells

@article{ author = { J. Lähnemann and M. O. Hill and J. Herranz and O. Marquardt and G. Gao and A. Al Hassan and A. Davtyan and S. O. Hruszkewycz and M. V. Holt and C. Huang and I. Calvo-Almazán and U. Jahn and U. Pietsch and L. J. Lauhon and L. Geelhaar }, title = { Correlated nanoscale analysis of the emission from wurtzite versus zincblende (In,Ga)As/GaAs nanowire core-shell quantum wells }, journal = { Nano Letters }, volume = { 19 }, year = { 2019 }, pages = { 4448 } }

TY - JOUR AU - J. Lähnemann AU - M. O. Hill AU - J. Herranz AU - O. Marquardt AU - G. Gao AU - A. Al Hassan AU - A. Davtyan AU - S. O. Hruszkewycz AU - M. V. Holt AU - C. Huang AU - I. Calvo-Almazán AU - U. Jahn AU - U. Pietsch AU - L. J. Lauhon AU - L. Geelhaar TI - Correlated nanoscale analysis of the emission from wurtzite versus zincblende (In,Ga)As/GaAs nanowire core-shell quantum wells JF - Nano Letters JA - Nano Lett. J1 - VL - 19 SP - 4448 PY - 2019/05/29