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

 

 

91 Author O. Marquardt , L. Geelhaar , O. Brandt
Title

Minimizing the influence of surface potentials in axial (In,Ga)N/GaN nanowire heterostructures by reducing their diameter

Source IEEE , IEEE Catalog Nr. CFP14817-PRT , 15 ( 2014 )
DOI : ISBN 978-1-4799-3681-6 | Download arXiv: | 2585 Cite : Bibtex RIS
O. Marquardt, L. Geelhaar, and O. Brandt

92 Author M. Musolino , A. Tahraoui , F. Limbach , J. Lähnemann , U. Jahn , O. Brandt , L. Geelhaar , H. Riechert
Title

Understanding peculiarities in the optoelectronic characteristics of light emitting diodes based on (In,Ga)N/GaN nanowires

Source Appl. Phys. Lett. , 105 , 083505 ( 2014 )
DOI : 10.1063/1.4894241 | Download: PDF | 2573 Cite : Bibtex RIS
M. Musolino, A. Tahraoui, F. Limbach, J. Lähnemann, U. Jahn, O. Brandt, L. Geelhaar, and H. Riechert

93 Author E. Dimakis , U. Jahn , M. Ramsteiner , A. Tahraoui , J. Grandal , X. Kong , O. Marquardt , A. Trampert , H. Riechert , L. Geelhaar
Title

Coaxial multi-shell (In,Ga)As/GaAs nanowires for near-infrared emission on Si substrates

Source Nano Lett. , 14 , 2604 ( 2014 )
DOI : 10.1021/nl500428v | 2499 Cite : Bibtex RIS
E. Dimakis, U. Jahn, M. Ramsteiner, A. Tahraoui, J. Grandal, X. Kong, O. Marquardt, A. Trampert, H. Riechert, and L. Geelhaar

94 Author C. Hauswald , T. Flissikowski , L. Geelhaar , H. T. Grahn , H. Riechert , O. Brandt
Title

Radiative and nonradiative decay of excitons in GaN nanowires

Source Proc. SPIE , 8986 , 89860V ( 2014 )
DOI : 10.1117/12.2039082 | Download: PDF | 2551 Cite : Bibtex RIS
C. Hauswald, T. Flissikowski, L. Geelhaar, H. T. Grahn, H. Riechert, and O. Brandt

95 Author S. Büyükköse , A. Hernández-Mínguez , B. Vratzov , C. Somaschini , L. Geelhaar , H. Riechert , W. G. van der Wiel , P. V. Santos
Title

High-frequency acoustic charge transport in GaAs nanowires

Source Nanotechnol. , 25 , 135204 ( 2014 )
DOI : 10.1088/0957-4484/25/13/135204 | 2541 Cite : Bibtex RIS
S. Büyükköse, A. Hernández-Mínguez, B. Vratzov, C. Somaschini, L. Geelhaar, H. Riechert, W. G. van der Wiel, and P. V. Santos

96 Author P. Kusch , E. Grelich , C. Somaschini , E. Luna , M. Ramsteiner , L. Geelhaar , H. Riechert , S. Reich
Title

Type-II band alignment of zinc-blende and wurtzite segments in GaAs nanowires: A combined photoluminescence and resonant Raman scattering study

Source Phys. Rev. B , 89 , 045310 ( 2014 )
DOI : 10.1103/PhysRevB.89.045310 | Download: PDF | 2563 Cite : Bibtex RIS
P. Kusch, E. Grelich, C. Somaschini, E. Luna, M. Ramsteiner, L. Geelhaar, H. Riechert, and S. Reich

97 Author L. Lari , I. M. Ross , T. Walther , K. Black , C. Chèze , L. Geelhaar , H. Riechert , P. R. Chalker
Title

GaN-based radial heterostructure nanowires grown by MBE and ALD

Source J. Phys.: Conf. Ser. , 471 , 012039 ( 2013 )
DOI : 10.1088/1742-6596/471/1/012039 | 2513 Cite : Bibtex RIS
L. Lari, I. M. Ross, T. Walther, K. Black, C. Chèze, L. Geelhaar, H. Riechert, and P. R. Chalker

98 Author M. Hilse , J. Herfort , B. Jenichen , A. Trampert , M. Hanke , P. Schaaf , L. Geelhaar , H. Riechert
Title

GaAs-Fe_3Si Core-Shell Nanowires: Nanobar Magnets

Source Nano Lett. , 13 , 6203 ( 2013 )
DOI : 10.1021/nl4035994 | 2511 Cite : Bibtex RIS
M. Hilse, J. Herfort, B. Jenichen, A. Trampert, M. Hanke, P. Schaaf, L. Geelhaar, and H. Riechert

99 Author E. Dimakis , M. Ramsteiner , C.-N. Huang , A. Trampert , A. Davydok , A. Biermanns , U. Pietsch , H. Riechert , L. Geelhaar
Title

In situ doping of catalyst-free InAs nanowires with Si: Growth, polytypism, and local vibrational modes of Si

Source Appl. Phys. Lett. , 103 , 143121 ( 2013 )
DOI : 10.1063/1.4824344 | Download: PDF | 2515 Cite : Bibtex RIS
E. Dimakis, M. Ramsteiner, C.-N. Huang, A. Trampert, A. Davydok, A. Biermanns, U. Pietsch, H. Riechert, and L. Geelhaar

100 Author A. Biermanns , D. Carbone , S. Breuer , V. L. R. Jacques , T. Schulli , L. Geelhaar , U. Pietsch
Title

Distribution of zinc-blende twins and wurtzite segments in GaAs nanowires probed by X-ray nanodiffraction

Source Phys. Status Solidi RRL , 7 , 860 ( 2013 )
DOI : 10.1002/pssr.201307246 | 2505 Cite : Bibtex RIS
A. Biermanns, D. Carbone, S. Breuer, V. L. R. Jacques, T. Schulli, L. Geelhaar, and U. Pietsch