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Research focus:  

Lehrstuhl für Physikalische Chemie II
Am Hubland, 97074/Würzburg

Scientific members:


   Outside lecturer:

   Scientific assistants:

   Other participating persons and organisations:

Research foci (and basic equipment-based research projects):
The optical properties of low dimensional systems are of great interest in the field of semiconductor physics. Quantum wires or dots are quasi one- or zero-dimensional systems in which free carriers and lattice vibrations (phonons) show special quantization effects. The energy of the phonons and their dependence on the size of the microstructures in the nanometer range can be determined by linear Raman spectroscopy.

For the results in this research area, please consult the above-mentioned publications.

Rewards and prizes:
Prof. Dr. W. Kiefer: Honorary Fellow of the Laser and Spectroscopy Society of India (F.L.S.S.), 1999. - Distinguished Service Award of the Society of Applied Spectroscopy, 2000. - Foreign Councillor of the Institute for Molecular Science, Okazaki National Research Institutes, Okazaki, Japan, 1999-2001. - Technical Expert Monitor of the International Science and Technology Center, Moscow, Russia, 1999-2002. - Chief Editor of the: Journal of Raman Spectroscopy, 2000. -- PD Dr. J. Popp: Zehetmaier Award (postdoctoral lecture qualification scholarship) awarded by the Freistaat Bayern, 1999. - Cooperation Prize of the University of Würzburg, 2001, - Bunsen-Kirchhoff Prize awarded by the German Bunsen-Society, 2002. -- PD Dr. A. Materny: Heisenberg-Scholarship, 1999. -- Dr. B. Schreder: Faculty Award (Dissertation) of the Faculty of Chemistry and Pharmacy, 2001.

Micro Raman set up incl. confocal pinhole (LabRam JobinYvon): HeNe-Laser, 785 diode laser, Ar ion laser (514 nm) and cw Nd:YAG laser / accessories; VIS Raman spectrometer incl. microscope: Ar ion laser / XY triple monochromator (DILOR) / OMA detector; VIS Raman spectrometer incl. microscope: Kr ion laser + Ar ion laser / Spex 1404 double monochromator / CCD camera; UV/VIS Raman spectrometer incl. microscope: Ar ion laser (275, 300, 305, 333, 351, 363, 454, 457, 466, 473, 476, 488, 496 and 514 nm) / Spex 1404 double monochromator / CCD camera; NIR Raman spectrometer: cw Nd:YAG laser / Jarrell Ash spectrometer / InGaAs detector / lock in amplifier; FT-IR spectrometer incl. FT-Raman module (Bruker): Nd:YAG laser / Ge detector / accessories.