PDI -> Staff ->

Dr. Lutz Geelhaar

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

 

 

1 Author Hanno Küpers , Ryan B. Lewis , L. Geelhaar
Title

Predictive model for the temporal evolution of the shape of GaAs nanowires

Source J. Cryst. Growth , xxx , xxx ( 2019 )
DOI : 10.1016/j.jcrysgro.2019.125320 | 3117 Cite : Bibtex RIS
Hanno Küpers, Ryan B. Lewis, and L. Geelhaar

2 Author Samuel D. Seddon , Christopher Benjamin , James I. Bryant , Christopher W. Burrows , Marc Walker , Graham Matheson , J. Herranz , L. Geelhaar , Gavin R. Bell
Title

Work function of GaAs(hkl) and its modification using PEI: mechanisms and substrate dependence

Source Phys. Chem. Chem. Phys. , 21 , 24666 ( 2019 )
DOI : 10.1039/c9cp04490f | 3159 Cite : Bibtex RIS
Samuel D. Seddon, Christopher Benjamin, James I. Bryant, Christopher W. Burrows, Marc Walker, Graham Matheson, J. Herranz, L. Geelhaar, and Gavin R. Bell

3 Author Ryan B. Lewis , A. Trampert , E. Luna , J. Herranz , Carsten Pfüller , L. Geelhaar
Title

Bismuth-surfactant-induced growth and structure of InAs/GaAs(110) quantum dots

Source Semicond. Sci. Technol. , 34 , 105016 ( 2019 )
DOI : 10.1088/1361-6641/ab3c23 | Download arXiv: 1905.05303 | 3107 Cite : Bibtex RIS
Ryan B. Lewis, A. Trampert, E. Luna, J. Herranz, Carsten Pfüller, and L. Geelhaar

4 Author C. Sinito , P. Corfdir , C. Pfüller , G. Gao , J. Bartolomé Vílchez , 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
Title

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 | Download arXiv: 1905.04090 | 3108 Cite : Bibtex RIS
C. Sinito, P. Corfdir, C. Pfüller, G. Gao, J. Bartolomé Vílchez, 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

5 Author M. Oliva , G. Gao , E. Luna , L. Geelhaar , R. B. Lewis
Title

Axial GaAs/Ga(As,Bi) nanowire heterostructures

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

6 Author F. Bastiman , H. Küpers , C. Somaschini , V.G. Dubrovskii , L. Geelhaar
Title

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 | Download arXiv: 1907.04249 | 3081 Cite : Bibtex RIS
F. Bastiman, H. Küpers, C. Somaschini, V.G. Dubrovskii, and L. Geelhaar

7 Author D. v. Treeck , J. Ledig , G. Scholz , J. Lähnemann , M. Musolino , A. Tahraoui , O. Brandt , A. Waag , H. Riechert , L. Geelhaar
Title

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

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

8 Author Philipp Schroth , Mahmoud Al Humaidi , Ludwig Feigl , Julian Jakob , Ali Al Hassan , Arman Davtyan , Hanno Küpers , A. Tahraoui , L. Geelhaar , Ullrich Pietsch , Tilo Baumbach
Title

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
Philipp Schroth, Mahmoud Al Humaidi, Ludwig Feigl, Julian Jakob, Ali Al Hassan, Arman Davtyan, Hanno Küpers, A. Tahraoui, L. Geelhaar, Ullrich Pietsch, and Tilo Baumbach

9 Author 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
Title

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 | Download 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

10 Author 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
Title

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

Source Nanotechnol. , 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