PDI -> Staff ->

Dr. Lutz Geelhaar

Head of Department Epitaxy

Lutz Geelhaar

phone: +49 30 20377 359

room: 0714

email: geelhaar@pdi-berlin.de

 

Department: Epitaxy

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

 

 

1 Author L. Hüttenhofer , R. B. Lewis , S. Rauwerdink , A. Tahraoui , H. Küpers , L. Geelhaar , O. Marquardt , S. Ludwig
Title

Optimization of ohmic contacts to n-type GaAs nanowires

Source Phys. Rev. Applied , 10 , 034024 ( 2018 )
DOI : 10.1103/PhysRevApplied.10.034024 | Download arXiv: 1711.08284 | 2988 Cite : Bibtex RIS
L. Hüttenhofer, R. B. Lewis, S. Rauwerdink, A. Tahraoui, H. Küpers, L. Geelhaar, O. Marquardt, and S. Ludwig

2 Author A. Senichev , P. Corfdir , O. Brandt , M. Ramsteiner , S. Breuer , J. Schilling , L. Geelhaar , P. Werner
Title

Electronic properties of wurtzite GaAs: A correlated structural, optical, and theoretical analysis of the same polytypic GaAs nanowire

Source Nano Res. , 11 , 4708 ( 2018 )
DOI : 10.1007/s12274-018-2053-5 | 3036 Cite : Bibtex RIS
A. Senichev, P. Corfdir, O. Brandt, M. Ramsteiner, S. Breuer, J. Schilling, L. Geelhaar, and P. Werner

3 Author E. Courtade , B. Han , S.Nakhaie , C. Robert , X. Marie , P. Renucci , T. Taniguchi , K. Watanabe , L. Geelhaar , J. M. J. Lopes , B. Urbaszek
Title

Spectrally narrow exciton luminescence from monolayer MoS2 and MoSe2 exfoliated onto epitaxially grown hexagonal BN

Source Appl. Phys. Lett. , 113 , 032106 ( 2018 )
DOI : 10.1063/1.5033554 | Download: PDF | 3051 Cite : Bibtex RIS
E. Courtade, B. Han, S.Nakhaie, C. Robert, X. Marie, P. Renucci, T. Taniguchi, K. Watanabe, L. Geelhaar, J. M. J. Lopes, and B. Urbaszek

4 Author A. Davtyan , V. Favre-Nicolin , R. B. Lewis , H. Küpers , L. Geelhaar , D. Kriegner , D. Bahrami , A. Al-Hassan , G. Chahine , O. Loffeld , U. Pietsch
Title

Coherent X-ray diffraction imaging meets ptychography to study core-shell-shell nanowires

Source MRS Advances , 3 , 2317 ( 2018 )
DOI : 10.1557/adv.2018.466 | Download arXiv: 10.1557/adv.2018.466 | 3038 Cite : Bibtex RIS
A. Davtyan, V. Favre-Nicolin, R. B. Lewis, H. Küpers, L. Geelhaar, D. Kriegner, D. Bahrami, A. Al-Hassan, G. Chahine, O. Loffeld, and U. Pietsch

5 Author P. Corfdir , G. Calabrese , A. Laha , T. Auzelle , L. Geelhaar , O. Brandt , S. Fernández-Garrido
Title

Monitoring the formation of GaN nanowires in molecular beam epitaxy by polarization-resolved optical reflectometry

Source CrystEngComm , 20 , 3202 ( 2018 )
DOI : 10.1039/C8CE00431E | 3006 Cite : Bibtex RIS
P. Corfdir, G. Calabrese, A. Laha, T. Auzelle, L. Geelhaar, O. Brandt, and S. Fernández-Garrido

6 Author R. B. Lewis , P. Corfdir , H. Küpers , T. Flissikowski , O. Brandt , L. Geelhaar
Title

Nanowires bending over backward from strain partitioning in asymmetric core-shell heterostructures

Source Nano Lett. , 18 , 2343 ( 2018 )
DOI : 10.1021/acs.nanolett.7b05221 | 2989 Cite : Bibtex RIS
R. B. Lewis, P. Corfdir, H. Küpers, T. Flissikowski, O. Brandt, and L. Geelhaar

7 Author S. Fernández-Garrido , M. Ramsteiner , L. A. Galves , C. Sinito , J. M. J. Lopes , L. Geelhaar , O. Brandt
Title

Plasma-assisted molecular beam epitaxy of GaN nanowires on epitaxial single-layer graphene

Source Proc. SPIE , 10532 , 105321U ( 2018 )
DOI : 10.1117/12.2288233 | Download: PDF | 3012 Cite : Bibtex RIS
S. Fernández-Garrido, M. Ramsteiner, L. A. Galves, C. Sinito, J. M. J. Lopes, L. Geelhaar, and O. Brandt

8 Author H. Küpers , R. B. Lewis , A. Tahraoui , M. Matalla , O. Krüger , F. Bastiman , H. Riechert , L. Geelhaar
Title

The diameter evolution of selective area grown Ga-assisted GaAs nanowires in molecular beam epitaxy

Source Nano Res. , 11 , 2885 ( 2018 )
DOI : 10.1007/s12274-018-1984-1 | 2956 Cite : Bibtex RIS
H. Küpers, R. B. Lewis, A. Tahraoui, M. Matalla, O. Krüger, F. Bastiman, H. Riechert, and L. Geelhaar

9 Author A. Al Hassan , R. B. Lewis , H. Küpers , W. H. Lin , D. Bahrami , T. Krause , D. Salomon , A. Tahraoui , M. Hanke , L. Geelhaar , U. Pietsch
Title

Nano x-ray fluorescence of individual GaAs/InGaAs core-shell nanowires

Source PRMaterials , 2 , 014604 ( 2018 )
DOI : 10.1103/PhysRevMaterials.2.014604 | 3040 Cite : Bibtex RIS
A. Al Hassan, R. B. Lewis, H. Küpers, W. H. Lin, D. Bahrami, T. Krause, D. Salomon, A. Tahraoui, M. Hanke, L. Geelhaar, and U. Pietsch

10 Author D. v. Treeck , G. Calabrese , J. Goertz , V. M. Kaganer , O. Brandt , S. Fernández-Garrido , L. Geelhaar
Title

Self-Assembled Formation of Long, Thin, and Uncoalesced GaN Nanowires on Crystalline TiN Films

Source Nano Res. , 11, Issue 1 , 565 ( 2018 )
DOI : 10.1007/s12274-017-1717-x | 2901 Cite : Bibtex RIS
D. v. Treeck, G. Calabrese, J. Goertz, V. M. Kaganer, O. Brandt, S. Fernández-Garrido, and L. Geelhaar