Dr. Lutz Geelhaar

Acting Director

Head of Department Epitaxy

Lutz Geelhaar

Telefon: +49 30 20377 359

Raum: 0714

Email: geelhaar@pdi-berlin.de

 

Abteilung: Epitaxy

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

 

 

51 Autor J. Lähnemann , T. Flissikowski , M. Wölz , L. Geelhaar , H. T. Grahn , O. Brandt , U. Jahn
Titel

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

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

52 Autor P. Corfdir , R. B. Lewis , O. Marquardt , H. Küpers , J. Grandal , E. Dimakis , A. Trampert , L. Geelhaar , O. Brandt , R. T. Phillips
Titel

Exciton recombination at crystal-phase quantum rings in GaAs/InxGa1-xAs core/multishell nanowires

Source Appl. Phys. Lett. , 109 , 082107 ( 2016 )
DOI : 10.1063/1.4961245 | Download: PDF | 2830 Cite : Bibtex RIS
P. Corfdir, R. B. Lewis, O. Marquardt, H. Küpers, J. Grandal, E. Dimakis, A. Trampert, L. Geelhaar, O. Brandt, and R. T. Phillips

53 Autor I. Giuntoni , L. Geelhaar , J. Bruns , H. Riechert
Titel

Light coupling between vertical III-V nanowires and planar Si photonic waveguides for the monolithic integration of active optoelectronic devices on a Si platform

Source Opt. Express , 24 , 18417 ( 2016 )
DOI : 10.1364/OE.24.018417 | Download: PDF | 2795 Cite : Bibtex RIS
I. Giuntoni, L. Geelhaar, J. Bruns, and H. Riechert

54 Autor M. Sobanska , S. Fernández-Garrido , Z. R. Zytkiewicz , G. Tchutchulashvili , S. Gieraltowska , O. Brandt , L. Geelhaar
Titel

Self-assembled growth of GaN nanowires on amorphous AlxOy: from nucleation to the formation of dense nanowire ensembles

Source Nanotechnol. , 27 , 325601 ( 2016 )
DOI : 10.1088/0957-4484/27/32/325601 | 2817 Cite : Bibtex RIS
M. Sobanska, S. Fernández-Garrido, Z. R. Zytkiewicz, G. Tchutchulashvili, S. Gieraltowska, O. Brandt, and L. Geelhaar

55 Autor J. Kamimura , P. Bogdanoff , M. Ramsteiner , L. Geelhaar , H. Riechert
Titel

Photoelectrochemical properties of InN nanowire photoelectrodes for solar water splitting

Source Semicond. Sci. Technol. , 31 , 074001 ( 2016 )
DOI : 10.1088/0268-1242/31/7/074001 | 2787 Cite : Bibtex RIS
J. Kamimura, P. Bogdanoff, M. Ramsteiner, L. Geelhaar, and H. Riechert

56 Autor M. Musolino , A. Tahraoui , D. v. Treeck , L. Geelhaar , H. Riechert
Titel

A modified Shockley equation taking into account the multi-element nature of light emitting diodes based on nanowire ensembles

Source Nanotechnol. , 27 , 275203 ( 2016 )
DOI : 10.1088/0957-4484/27/27/275203 | 2803 Cite : Bibtex RIS
M. Musolino, A. Tahraoui, D. v. Treeck, L. Geelhaar, and H. Riechert

57 Autor G. Calabrese , P. Corfdir , G. Gao , C. Pfüller , A. Trampert , O. Brandt , L. Geelhaar , S. Fernández-Garrido
Titel

Molecular beam epitaxy of single crystalline GaN nanowires on a flexible Ti foil

Source Appl. Phys. Lett. , 108 , 202101 ( 2016 )
DOI : 10.1063/1.4950707 | Download: PDF | 2794 Cite : Bibtex RIS
G. Calabrese, P. Corfdir, G. Gao, C. Pfüller, A. Trampert, O. Brandt, L. Geelhaar, and S. Fernández-Garrido

58 Autor P. Corfdir , C. Hauswald , O. Marquardt , T. Flissikowski , J. K. Zettler , S. Fernández-Garrido , L. Geelhaar , H. T. Grahn , O. Brandt
Titel

Crystal-phase quantum dots in GaN quantum wires

Source Phys. Rev. B , 93 , 115305 ( 2016 )
DOI : 10.1103/PhysRevB.93.115305 | Download: PDF | 2783 Cite : Bibtex RIS
P. Corfdir, C. Hauswald, O. Marquardt, T. Flissikowski, J. K. Zettler, S. Fernández-Garrido, L. Geelhaar, H. T. Grahn, and O. Brandt

59 Autor J. K. Zettler , P. Corfdir , C. Hauswald , E. Luna , U. Jahn , T. Flissikowski , E. Schmidt , C. Ronning , A. Trampert , L. Geelhaar , H. T. Grahn , O. Brandt , S. Fernández-Garrido
Titel

Observation of dielectrically confined excitons in ultrathin GaN nanowires up to room temperature

Source Nano Lett. , 16 , 973 ( 2016 )
DOI : 10.1021/acs.nanolett.5b03931 | 2739 Cite : Bibtex RIS
J. K. Zettler, P. Corfdir, C. Hauswald, E. Luna, U. Jahn, T. Flissikowski, E. Schmidt, C. Ronning, A. Trampert, L. Geelhaar, H. T. Grahn, O. Brandt, and S. Fernández-Garrido

60 Autor F. Bastiman , H. Küpers , C. Somaschini , L. Geelhaar
Titel

Growth map for Ga-assisted growth of GaAs nanowires on Si(111) substrates by molecular beam epitaxy

Source Nanotechnol. , 27 , 095601 ( 2016 )
DOI : 10.1088/0957-4484/27/9/095601 | 2691 Cite : Bibtex RIS
F. Bastiman, H. Küpers, C. Somaschini, and L. Geelhaar