Nanofabrication

Dr. Lutz Geelhaar

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

 

 

21 Autor C. Sinito , P. Corfdir , C. Pfüller , G. Gao , J. Bartolomé , S. Kölling , A. Rodil Doblado , U. Jahn , J. Lähnemann , T. Auzelle , J. K. Zettler , T. Flissikowski , P. Koenraad , H. T. Grahn , L. Geelhaar , S. Fernández-Garrido , O. Brandt
Titel

Absence of quantum-confined Stark effect in GaN quantum disks embedded in (Al,Ga)N nanowires grown by molecular beam epitaxy

Source Nano Lett. , 19 , 5938 ( 2019 )
DOI : 10.1021/acs.nanolett.9b01521 | arxiv: 1905.04090 | 3108 Cite : Bibtex RIS
C. Sinito, P. Corfdir, C. Pfüller, G. Gao, J. Bartolomé, S. Kölling, A. Rodil Doblado, U. Jahn, J. Lähnemann, T. Auzelle, J. K. Zettler, T. Flissikowski, P. Koenraad, H. T. Grahn, L. Geelhaar, S. Fernández-Garrido, and O. Brandt

22 Autor M. Oliva , G. Gao , E. Luna , L. Geelhaar , R. B. Lewis
Titel

Axial GaAs/Ga(As,Bi) nanowire heterostructures

Source Nanotechnology , 30 , 425601 ( 2019 )
DOI : 10.1088/1361-6528/ab3209 | arxiv: 1903.11039 | 3086 Cite : Bibtex RIS
M. Oliva, G. Gao, E. Luna, L. Geelhaar, and R. B. Lewis

23 Autor F. Bastiman , H. Küpers , C. Somaschini , V.G. Dubrovskii , L. Geelhaar
Titel

Analysis of incubation time preceding the Ga-assisted nucleation and growth of GaAs nanowires on Si(111)

Source Phys. Rev. Mater. , 3 , 073401 ( 2019 )
DOI : 10.1103/PhysRevMaterials.3.073401 | arxiv: 1907.04249 | 3081 Cite : Bibtex RIS
F. Bastiman, H. Küpers, C. Somaschini, V.G. Dubrovskii, and L. Geelhaar

24 Autor D. van Treeck , J. Ledig , G. Scholz , J. Lähnemann , M. Musolino , A. Tahraoui , O. Brandt , A. Waag , H. Riechert , L. Geelhaar
Titel

Electroluminescence and current-voltage measurements of single (In,Ga)N/GaN nanowire light-emitting diodes in a nanowire ensemble

Source Beilstein J. Nanotechnol. , 10 , 1177 ( 2019 )
DOI : 10.3762/bjnano.10.117 | 3047 Cite : Bibtex RIS
D. van Treeck, J. Ledig, G. Scholz, J. Lähnemann, M. Musolino, A. Tahraoui, O. Brandt, A. Waag, H. Riechert, and L. Geelhaar

25 Autor P. Schroth , M. Al Humaidi , L. Feigl , J. Jakob , A. Al Hassan , A. Davtyan , H. Küpers , A. Tahraoui , L. Geelhaar , U. Pietsch , T. Baumbach
Titel

Impact of the Shadowing Effect on the Crystal Structure of Patterned Self-Catalyzed GaAs Nanowires

Source Nano Lett. , 19 , 4263 ( 2019 )
DOI : 10.1021/acs.nanolett.9b00380 | 3123 Cite : Bibtex RIS
P. Schroth, M. Al Humaidi, L. Feigl, J. Jakob, A. Al Hassan, A. Davtyan, H. Küpers, A. Tahraoui, L. Geelhaar, U. Pietsch, and T. Baumbach

26 Autor J. Lähnemann , M. O. Hill , J. Herranz , O. Marquardt , G. Gao , A. Al Hassan , A. Davtyan , S. O. Hruszkewycz , M. V. Holt , C. Huang , I. Calvo-Almazán , U. Jahn , U. Pietsch , L. J. Lauhon , L. Geelhaar
Titel

Correlated nanoscale analysis of the emission from wurtzite versus zincblende (In,Ga)As/GaAs nanowire core-shell quantum wells

Source Nano Lett. , 19 , 4448 ( 2019 )
DOI : 10.1021/acs.nanolett.9b01241 | arxiv: 1903.07372 | 3094 Cite : Bibtex RIS
J. Lähnemann, M. O. Hill, J. Herranz, O. Marquardt, G. Gao, A. Al Hassan, A. Davtyan, S. O. Hruszkewycz, M. V. Holt, C. Huang, I. Calvo-Almazán, U. Jahn, U. Pietsch, L. J. Lauhon, and L. Geelhaar

27 Autor L. Mancini , M. Morassi , C. Sinito , O. Brandt , L. Geelhaar , H.G. Song , Y.H. Cho , N. Guan , A. Madouri , C. Barbier , L. Largeau , A. Babichev , F.H. Julien , L. Travers , F. Oehler , N. Gogneau , J.C. Harmand , M. Tchernycheva
Titel

Optical properties of GaN Nanowires grown on chemical vapor deposited-Graphene

Source Nanotechnology , 30 , 214005 ( 2019 )
DOI : 10.1088/1361-6528/ab0570 | 3088 Cite : Bibtex RIS
L. Mancini, M. Morassi, C. Sinito, O. Brandt, L. Geelhaar, H.G. Song, Y.H. Cho, N. Guan, A. Madouri, C. Barbier, L. Largeau, A. Babichev, F.H. Julien, L. Travers, F. Oehler, N. Gogneau, J.C. Harmand, and M. Tchernycheva

28 Autor M. Sobanska , Z. R. Zytkiewicz , G. Calabrese , L. Geelhaar , S. Fernández-Garrido
Titel

Comprehensive analysis of the self-assembled formation of GaN nanowires on amorphous AlxOy: in situ quadrupole mass spectrometry studies

Source Nanotechnology , 30 , 154002 ( 2019 )
DOI : 10.1088/1361-6528/aafe17 | 3099 Cite : Bibtex RIS
M. Sobanska, Z. R. Zytkiewicz, G. Calabrese, L. Geelhaar, and S. Fernández-Garrido

29 Autor H. Küpers , P. Corfdir , R. B. Lewis , T. Flissikowski , A. Tahraoui , H. T. Grahn , O. Brandt , L. Geelhaar
Titel

Impact of outer shell structure and localization effects on charge carrier dynamics in GaAs/(In,Ga)As nanowire core-shell quantum wells

Source Phys. Status Solidi-Rapid Res. Lett. , 13 , 1800527 ( 2019 )
DOI : 10.1002/pssr.201800527 | 3033 Cite : Bibtex RIS
H. Küpers, P. Corfdir, R. B. Lewis, T. Flissikowski, A. Tahraoui, H. T. Grahn, O. Brandt, and L. Geelhaar

30 Autor G. Calabrese , G. Gao , D. van Treeck , P. Corfdir , C. Sinito , T. Auzelle , A. Trampert , L. Geelhaar , O. Brandt , S. Fernández-Garrido
Titel

Interfacial reactions during the molecular beam epitaxy of GaN nanowires on Ti/Al2O3

Source Nanotechnology , 30 , 114001 ( 2019 )
DOI : 10.1088/1361-6528/aaf9c5 | 3072 Cite : Bibtex RIS
G. Calabrese, G. Gao, D. van Treeck, P. Corfdir, C. Sinito, T. Auzelle, A. Trampert, L. Geelhaar, O. Brandt, and S. Fernández-Garrido