Intersubband Emitters: GaAs-based Quantum-Cascade Lasers

Dr. Jonas Lähnemann

Scientist

Jonas Lähnemann

phone: +49 30 20377 450

room: 0530

email: jonas@pdi-berlin.de

 

Department: Semiconductor Spectroscopy

Core research areas: Nanoanalytics , III-V nanowires for optoelectronics

 

Research interests:

Luminescence spectroscopy, Analytical scanning electron microscopy, Semiconductor nanowires, III-V semiconductors for optoelectronic applications, Thin-film solar cells

 

 

1 Author L. van Deurzen , M. Gomez Ruiz , K. Lee , H. Turski , S. Bharadwaj , R. Page , V. Protasenko , H. G. Xing , J. Lähnemann , D. Jena
Title

Dislocation and Indium Droplet Related Emission Inhomogeneities in InGaN LEDs

Source J. Phys. D: Appl. Phys. , 54 , 495106 ( 2021 )
DOI : 10.1088/1361-6463/ac2446 | Download arXiv: 2106.10809 | 3259 Cite : Bibtex RIS
L. van Deurzen, M. Gomez Ruiz, K. Lee, H. Turski, S. Bharadwaj, R. Page, V. Protasenko, H. G. Xing, J. Lähnemann, and D. Jena

2 Author P. Wojnar , J. Płachta , A. Reszka , J. Lähnemann , A. Kaleta , S. Kret , P. Baranowski , M. Wójcik , B. J. Kowalski , L. T. Baczewski , G. Karczewski , T. Wojtowicz
Title

Near-infrared emission from spatially indirect excitons in type II ZnTe/CdSe/(Zn,Mg)Te core/double-shell nanowires

Source Nanotechnology , 32 , 495202 ( 2021 )
DOI : 10.1088/1361-6528/ac218c | Download arXiv: 2109.00272 | 3261 Cite : Bibtex RIS
P. Wojnar, J. Płachta, A. Reszka, J. Lähnemann, A. Kaleta, S. Kret, P. Baranowski, M. Wójcik, B. J. Kowalski, L. T. Baczewski, G. Karczewski, and T. Wojtowicz

3 Author J. Feldl , M. Feneberg , A. Papadogianni , J. Lähnemann , T. Nagata , O. Bierwagen , R. Goldhahn , M. Ramsteiner
Title

Band gap widening and phonon behavior of cubic single-crystalline (In,Ga)2O3 alloy films

Source Appl. Phys. Lett. , 119 , 042101 ( 2021 )
DOI : 10.1063/5.0056532 | Download: PDF | 3241 Cite : Bibtex RIS
J. Feldl, M. Feneberg, A. Papadogianni, J. Lähnemann, T. Nagata, O. Bierwagen, R. Goldhahn, and M. Ramsteiner

4 Author A. AlHassan , J. Lähnemann , A. Davtyan , M. Al-Humaidi , J. Herranz , D. Bahrami , T. Anjum , F. Bertram , A. B. Dey , L. Geelhaar , U. Pietsch
Title

Beam damage of single semiconductor nanowires during X-ray nano beam diffraction experiments

Source J. Synchrotron Rad. , 27 , 1200 ( 2020 )
DOI : 10.1107/S1600577520009789 | Download: PDF | 3193 Cite : Bibtex RIS
A. AlHassan, J. Lähnemann, A. Davtyan, M. Al-Humaidi, J. Herranz, D. Bahrami, T. Anjum, F. Bertram, A. B. Dey, L. Geelhaar, and U. Pietsch

5 Author S. Fernández-Garrido , C. Pisador , J. Lähnemann , S. Lazic , A. Ruiz , A. Redondo-Cubero
Title

Coalescence, crystallographic orientation and luminescence of ZnO nanowires grown on Si(001) by chemical vapour transport

Source Nanotechnology , 31 , 475603 ( 2020 )
DOI : 10.1088/1361-6528/abadc8 | Download arXiv: 2005.14704 | 3207 Cite : Bibtex RIS
S. Fernández-Garrido, C. Pisador, J. Lähnemann, S. Lazic, A. Ruiz, and A. Redondo-Cubero

6 Author A. AlHassan , J. Lähnemann , S. Leake , H. Küpers , M. Niehle , D. Bahrami , F. Bertram , R. B. Lewis , A. Davtyan , T. U. Schülli , L. Geelhaar , U. Pietsch
Title

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

Source Nanotechnology , 31 , 214002 ( 2020 )
DOI : 10.1088/1361-6528/ab7590 | Download arXiv: 2002.08172 | 3173 Cite : Bibtex RIS
A. AlHassan, J. Lähnemann, S. Leake, H. Küpers, M. Niehle, D. Bahrami, F. Bertram, R. B. Lewis, A. Davtyan, T. U. Schülli, L. Geelhaar, and U. Pietsch

7 Author M. Azadmand , T. Auzelle , J. Lähnemann , G. Gao , L. Nicolai , M. Ramsteiner , A. Trampert , S. Sanguinetti , O. Brandt , L. Geelhaar
Title

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

Source Phys. Status Solidi-Rapid Res. Lett. , 14 , 1900615 ( 2020 )
DOI : 10.1002/pssr.201900615 | Download arXiv: 1910.07391 | 3149 Cite : Bibtex RIS
M. Azadmand, T. Auzelle, J. Lähnemann, G. Gao, L. Nicolai, M. Ramsteiner, A. Trampert, S. Sanguinetti, O. Brandt, and L. Geelhaar

8 Author I. Dimkou , A. Harikumar , F. Donatini , J. Lähnemann , M. I. den Hertog , C. Bougerol , E. Bellet-Amalric , N. Mollard , A. Ajay , G. Ledoux , S. T. Purcell , E. Monroy
Title

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

Source Nanotechnology , 31 , 204001 ( 2020 )
DOI : 10.1088/1361-6528/ab704d | Download arXiv: 1911.13133 | 3165 Cite : Bibtex RIS
I. Dimkou, A. Harikumar, F. Donatini, J. Lähnemann, M. I. den Hertog, C. Bougerol, E. Bellet-Amalric, N. Mollard, A. Ajay, G. Ledoux, S. T. Purcell, and E. Monroy

9 Author J. Herranz , P. Corfdir , E. Luna , U. Jahn , R. B. Lewis , L. Schrottke , J. Lähnemann , A. Tahraoui , A. Trampert , O. Brandt , 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

Source ACS Appl. Nano Mater. , 3 , 165 ( 2020 )
DOI : 10.1021/acsanm.9b01866 | Download arXiv: 1908.10134 | 3132 Cite : Bibtex RIS
J. Herranz, P. Corfdir, E. Luna, U. Jahn, R. B. Lewis, L. Schrottke, J. Lähnemann, A. Tahraoui, A. Trampert, O. Brandt, and L. Geelhaar

10 Author M. Budde , T. Remmele , C. Tschammer , J. Feldl , P. Franz , J. Lähnemann , Z. Cheng , M. Hanke , M. Ramsteiner , M. Albrecht , O. Bierwagen
Title

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

Source J. Appl. Phys. , 127 , 015306 ( 2020 )
DOI : 10.1063/1.5129881 | Download: PDF | 3137 Cite : Bibtex RIS
M. Budde, T. Remmele, C. Tschammer, J. Feldl, P. Franz, J. Lähnemann, Z. Cheng, M. Hanke, M. Ramsteiner, M. Albrecht, and O. Bierwagen

Contact

Prof. Dr. Holger T. Grahn

Head of Department 

+49 30 20377-318

htgrahn@pdi-berlin.de

Dr. Lutz Schrottke

Senior Scientist

+49 30 20377-339

lutz@pdi-berlin.de