PDI -> Staff ->

Dr. Lutz Geelhaar

Acting Director

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

 

 

31 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

32 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

33 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

34 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

35 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 Phys. Rev. Mater. , 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

36 Author D. van 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. van Treeck, G. Calabrese, J. Goertz, V. M. Kaganer, O. Brandt, S. Fernández-Garrido, and L. Geelhaar

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

Surface preparation and patterning by nano imprint lithography for the selective area growth of GaAs nanowires on Si(111)

Source Semicond. Sci. Technol. , 32 , 115003 ( 2017 )
DOI : 10.1088/1361-6641/aa8c15 | Download arXiv: 1708.02454 | 2943 Cite : Bibtex RIS
H. Küpers, A. Tahraoui, R. B. Lewis, S. Rauwerdink, M. Matalla, O. Krüger, F. Bastiman, H. Riechert, and L. Geelhaar

38 Author G. Calabrese , S. V. Pettersen , C. Pfüller , M. Ramsteiner , J. Grepstad , O. Brandt , L. Geelhaar , S. Fernández-Garrido
Title

Effect of substrate roughness, chemical composition, and native oxide crystallinity on the orientation of self-assembled GaN nanowires on Ti foils

Source Nanotechnology , 28 , 425602 ( 2017 )
DOI : 10.1088/1361-6528/aa84a1 | 2935 Cite : Bibtex RIS
G. Calabrese, S. V. Pettersen, C. Pfüller, M. Ramsteiner, J. Grepstad, O. Brandt, L. Geelhaar, and S. Fernández-Garrido

39 Author S. Fernández-Garrido , M. Ramsteiner , G. Gao , L. A. Galves , Bharat Sharma , P. Corfdir , G. Calabrese , Z. de Souza Schiaber , C. Pfüller , A. Trampert , J. M. J. Lopes , O. Brandt , L. Geelhaar
Title

Molecular Beam Epitaxy of GaN Nanowires on Epitaxial Graphene

Source Nano Lett. , 17 , 5213 ( 2017 )
DOI : 10.1021/acs.nanolett.7b01196 | 2906 Cite : Bibtex RIS
S. Fernández-Garrido, M. Ramsteiner, G. Gao, L. A. Galves, Bharat Sharma, P. Corfdir, G. Calabrese, Z. de Souza Schiaber, C. Pfüller, A. Trampert, J. M. J. Lopes, O. Brandt, and L. Geelhaar

40 Author W.-H. Lin , U. Jahn , H. Küpers , E. Luna , R. B. Lewis , L. Geelhaar , O. Brandt
Title

Efficient methodology to correlate structural with optical properties of GaAs nanowires based on scanning electron microscopy

Source Nanotechnology , 28 , 415703 ( 2017 )
DOI : 10.1088/1361-6528/aa8394 | 2917 Cite : Bibtex RIS
W.-H. Lin, U. Jahn, H. Küpers, E. Luna, R. B. Lewis, L. Geelhaar, and O. Brandt