Detlef Hommel

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Detlef Hommel

Dyrektor Departamentu Nanostruktur Półprzewodnikowych


Scientific degrees and titles:

1975 MSc – Physics Dept. University of Warsaw
1979 PhD – Physics Dept. University of Warsaw
1989 Habilitation (Dr. sc. nat.) – Humboldt-University Berlin
1991 Dr. habil. rer. nat. – University Leipzig
1993 Privatdozent – University Würzburg
1994 University Professor (C4) – University of Bremen

Scientific field of interest:

Condensed matter physics, mainly semiconductors and optoelectronic devices: spectroscopy of Rare Earth ions in wide gap materials; thin film electroluminescence; modern technologies especially for semiconductor epitaxy (molecular beam epitaxy MBE and metal organic vapour phase epitaxy MOVPE) and processing (focused ion beam, photo- and e-beam-lithography, various deposition methods); nanoscience (quantum dots, micropillars and nanorods); structural, electrical and optical characterization of heterostructures; optoelectronic devices (laser diodes, surface emitters, single photon sources, sensors); basic properties of wide bandgap semiconductors (group-III nitrides, II-VI selenides and tellurides)

Scientific output and science guidance experiences:

500+ original publications in internationally cited journals, among them Nature and Nature Physics, 6 Phys. Rev. Letters, 43 Phys. Rev. B, 3 Electronic Letters, 46 Appl. Phys. Letters, 21 J. Appl. Phys.;
Hirsch index 32;
30+ invited talks at major international condensed matter conferences;
17 PhD and 35+ MSc theses supervisor; out of the group one female professor at University of Aachen;
evaluator of physics theses in Tampere and Helsinki and in Warsaw;
10 patents on semiconductor devices

Major accomplishments in research and education management:

Teaching of basic lectures as well as on specialized topics for physicists and electrical engineers at the universities of Würzburg, Bremen, UC Santa Barbara and Warsaw (in German, English and Polish)
Build up of the Semiconductor Epitaxy Laboraty at University of Bremen including twin MBE-chamber (II-VI and III-V) plus XPS chamber, MOVPE, HRXRD at variable temperatures, dual focused ion beam with e-beam-lithography, AFM, CAIBE for dry etching, equipment for electrical and optical measurements;
2003-09 Speaker of the DFG Research Group “Physics of nitride-based, nanostructured, light-emitting devices”
2008-11 Vice-speaker of the Virtual Institute “PINCH-Photonics” in frame of the Helmholtz-Society at Research Center (FZ) Karlsruhe
Research grants by DFG, BMBF, Helmholtz-Society, Volkswagen Foundation and Bremen State with a total value of about 8 mln €
Speaker of the Institute of Solid State Physics

Major internationally recognized achievements:

1993 Green ZnSe laser diode (LD)
1998 Homoepitaxial ZnSe LD on ZnSe substrate in cw-operation
1999 Distributed Feedback (DFB) laser (II-VI) in the green spectral region
2000 Laser diode emitting at 560 nm (yellow-green) *
2001 Quantum dot LD with CdSe/ZnSSe *
2002 First European university realizing a violet nitride-based laser diode
2004 Homoepitaxial laser diode emitting at 400 nm on a GaN-HVPE substrate
2005 cw-operation of a GaN laser diode as first university worldwide
2008 Self organized, mask-free GaN nanorods on r-plane sapphire

(* first worldwide)

Major international scientific conferences as organizer or co-chair:

1994 Chairman “International Workshop on Blue Lasers” in Würzburg
1996 Co-chairman “German-Japanese Workshop on II-VI Compounds” in Bremen
2001 Co-chairman “10th International Conference on II-VI Compounds” in Bremen
2005 Chairman “6th International Conference on Nitride Semiconducturs” in Bremen
2008 Co-organizer E-MRS Strasbourg, Symposium G “Wide bandgap”
2009 Co-organizer E-MRS Fall Meeting Warsaw, Symposium “Wide bandgap”
2012 Co-chairman “International Symposium on Light Emitting Structures” in Berlin

Member of International Advisory Committees in the following series:

International Symposium on Light Emitting Structures (1998 – 1970)
International Conference on II-VI Compounds (since 1997)
International Conference on Nitride Semiconductors (since 2009)
International Workshop on Nitride Semiconductors (since 2004)
International Symposium on the Growth of Nitrides (since 2008)

Scientific awards and activities abroad:

1997 Visiting Professor at Yamaguchi University, Japan (3 month)
1998 Distinguished Guest at QUEST, University of Santa Barbara (2 month)
2000 Visiting Professor at Chiba University, Japan (3 month)
2006 – 2009 Alexander von Humboldt Honorary Research Fellowship of the Polish Science Foundation FNP (12 month over a 3 year period) in Warsaw

Autor: , Opublikowano: 26.05.2015