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

 

 

51 Author M. Musolino , A. Tahraoui , L. Geelhaar , F. Sacconi , F. Panetta , C. De Santi , M. Meneghini , E. Zanoni
Title

The effect of the three-dimensional strain variation on the emission properties of light-emitting diodes based on (In,Ga)N/GaN nanowires

Source Phys. Rev. Appl. , 7 , 044014 ( 2017 )
DOI : 10.1103/PhysRevApplied.7.044014 | Download arXiv: 1704.01569 | 2888 Cite : Bibtex RIS
M. Musolino, A. Tahraoui, L. Geelhaar, F. Sacconi, F. Panetta, C. De Santi, M. Meneghini, and E. Zanoni

52 Author J. Kamimura , P. Bogdanoff , M. Ramsteiner , P. Corfdir , F. Feix , L. Geelhaar , H. Riechert
Title

p-type doping of GaN nanowires characterized by photoelectrochemical measurements

Source Nano Lett. , 17 , 1529 ( 2017 )
DOI : 10.1021/acs.nanolett.6b04560 | 2820 Cite : Bibtex RIS
J. Kamimura, P. Bogdanoff, M. Ramsteiner, P. Corfdir, F. Feix, L. Geelhaar, and H. Riechert

53 Author C. Hauswald , I. Giuntoni , T. Flissikowski , T. Gotschke , R. Calarco , H. T. Grahn , L. Geelhaar , O. Brandt
Title

Luminous efficiency of ordered arrays of GaN nanowires with sub-wavelength diameters

Source ACS Photonics , 4 , 52 ( 2017 )
DOI : 10.1021/acsphotonics.6b00551 | 2823 Cite : Bibtex RIS
C. Hauswald, I. Giuntoni, T. Flissikowski, T. Gotschke, R. Calarco, H. T. Grahn, L. Geelhaar, and O. Brandt

54 Author Z. de Souza Schiaber , G. Calabrese , X. Kong , A. Trampert , B. Jenichen , J. H. Dias da Silva , L. Geelhaar , O. Brandt , S. Fernández-Garrido
Title

Polarity-induced selective area epitaxy of GaN nanowires

Source Nano Lett. , 17 , 63 ( 2017 )
DOI : 10.1021/acs.nanolett.6b03249 | 2856 Cite : Bibtex RIS
Z. de Souza Schiaber, G. Calabrese, X. Kong, A. Trampert, B. Jenichen, J. H. Dias da Silva, L. Geelhaar, O. Brandt, and S. Fernández-Garrido

55 Author R. B. Lewis , L. Nicolai , H. Küpers , M. Ramsteiner , A. Trampert , L. Geelhaar
Title

Anomalous strain relaxation in core-shell nanowires via simultaneous coherent and incoherent growth

Source Nano Lett. , 17 , 136 ( 2017 )
DOI : 10.1021/acs.nanolett.6b03681 | 2824 Cite : Bibtex RIS
R. B. Lewis, L. Nicolai, H. Küpers, M. Ramsteiner, A. Trampert, and L. Geelhaar

56 Author J. Kamimura , P. Bogdanoff , P. Corfdir , O. Brandt , H. Riechert , L. Geelhaar
Title

Broad-band light absorption and high photocurrent of (In,Ga)N nanowire photoanodes resulting from a radial Stark effect

Source ACS Appl. Mater. Interfaces , 8 , 34490 ( 2016 )
DOI : 10.1021/acsami.6b12874 | 2834 Cite : Bibtex RIS
J. Kamimura, P. Bogdanoff, P. Corfdir, O. Brandt, H. Riechert, and L. Geelhaar

57 Author H. Küpers , F. Bastiman , E. Luna , C. Somaschini , L. Geelhaar
Title

Ga predeposition for the Ga-assisted growth of GaAs nanowire ensembles with low number density and homogeneous length

Source J. Cryst. Growth , 459 , 43 ( 2016 )
DOI : 10.1016/j.jcrysgro.2016.11.065 | 2864 Cite : Bibtex RIS
H. Küpers, F. Bastiman, E. Luna, C. Somaschini, and L. Geelhaar

58 Author C. Pfüller , P. Corfdir , C. Hauswald , T. Flissikowski , X. Kong , J. K. Zettler , S. Fernández-Garrido , P. Dogan , H. T. Grahn , A. Trampert , L. Geelhaar , O. Brandt
Title

Nature of excitons bound to inversion domain boundaries: Origin of the 3.45-eV luminescence lines in spontaneously formed GaN nanowires on Si(111)

Source Phys. Rev. B , 94 , 155308 ( 2016 )
DOI : 10.1103/PhysRevB.94.155308 | Download: PDF | 2852 Cite : Bibtex RIS
C. Pfüller, P. Corfdir, C. Hauswald, T. Flissikowski, X. Kong, J. K. Zettler, S. Fernández-Garrido, P. Dogan, H. T. Grahn, A. Trampert, L. Geelhaar, and O. Brandt

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

Exciton dynamics in GaAs(Al,Ga)As core-shell nanowires with shell quantum dots

Source Phys. Rev. B , 94 , 155413 ( 2016 )
DOI : 10.1103/PhysRevB.94.155413 | Download: PDF | 2798 Cite : Bibtex RIS
P. Corfdir, H. Küpers, R. B. Lewis, T. Flissikowski, H. T. Grahn, L. Geelhaar, and O. Brandt

60 Author J. Lähnemann , T. Flissikowski , M. Wölz , L. Geelhaar , H. T. Grahn , O. Brandt , U. Jahn
Title

Quenching of the luminescence intensity of GaN nanowires under electron beam exposure: Impact of C adsorption on the exciton lifetime

Source Nanotechnology , 27 , 455706 ( 2016 )
DOI : 10.1088/0957-4484/27/45/455706 | Download arXiv: 1607.03397 | 2849 Cite : Bibtex RIS
J. Lähnemann, T. Flissikowski, M. Wölz, L. Geelhaar, H. T. Grahn, O. Brandt, and U. Jahn