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 G. Bussone , E. Dimakis , R. Grifone , A. Biermanns , A. Tahraoui , D. Carbone , L. Geelhaar , T. U. Schülli , U. Pietsch
Title

Impact of strain induced by polymer curing in benzocyclobutene embedded semiconductor nanostructures

Source Phys. Status Solidi-Rapid Res. Lett. , 8 , 1007 ( 2014 )
DOI : 10.1002/pssr.201409346 | 2630 Cite : Bibtex RIS
G. Bussone, E. Dimakis, R. Grifone, A. Biermanns, A. Tahraoui, D. Carbone, L. Geelhaar, T. U. Schülli, and U. Pietsch

92 Author J. Grandal , M. Wu , X. Kong , M. Hanke , E. Dimakis , L. Geelhaar , H. Riechert , A. Trampert
Title

Plan-view transmission electron microscopy investigation of GaAs/(In,Ga)As core-shell nanowires

Source Appl. Phys. Lett. , 105 , 121602 ( 2014 )
DOI : 10.1063/1.4896505 | Download: PDF | 2596 Cite : Bibtex RIS
J. Grandal, M. Wu, X. Kong, M. Hanke, E. Dimakis, L. Geelhaar, H. Riechert, and A. Trampert

93 Author J. Lähnemann , C. Hauswald , M. Wölz , U. Jahn , M. Hanke , L. Geelhaar , O. Brandt
Title

Localization and defects in axial (In,Ga)N/GaN nanowire heterostructures investigated by spatially-resolved luminescence spectroscopy

Source J. Phys. D: Appl. Phys. , 47 , 394010 ( 2014 )
DOI : 10.1088/0022-3727/47/39/394010 | Download arXiv: 1405.1507 | 2571 Cite : Bibtex RIS
J. Lähnemann, C. Hauswald, M. Wölz, U. Jahn, M. Hanke, L. Geelhaar, and O. Brandt

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

Minimizing the impact of surface potentials in axial InGaN/GaN nanowire heterostructures by reducing their diameter

Source J. Phys. D: Appl. Phys. , 47 , 1 ( 2014 )
DOI : 10.1088/0022-3727/47/39/394007 | 2565 Cite : Bibtex RIS
O. Marquardt, L. Geelhaar, and O. Brandt

95 Author S. Bietti , C. Somaschini , C. Frigeri , A. Fedorov , L. Esposito , L. Geelhaar , S. Sanguinetti
Title

Self-assisted GaAs nanowires with controllable number density on bare Silicon

Source J. Phys. D: Appl. Phys. , 47 , 394002 ( 2014 )
DOI : 10.1088/0022-3727/47/39/394002 | 2568 Cite : Bibtex RIS
S. Bietti, C. Somaschini, C. Frigeri, A. Fedorov, L. Esposito, L. Geelhaar, and S. Sanguinetti

96 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

97 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

98 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

99 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

100 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 Nanotechnology , 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