Dresden 2003 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

HL: Halbleiterphysik

HL 49: Poster II

HL 49.53: Poster

Donnerstag, 27. März 2003, 16:30–19:00, HSZ/P2

Photophysics of Nanoparticle-Polymer Composite Thin Films — •S. Böger¹, J. Wisch¹, M. Pientka¹, V. Dyakonov¹, J. Parisi¹, A. Rogach², D. Talapin², and H. Weller² — ¹Department of Energy and Semiconductor Research, Faculty of Physics, University of Oldenburg, D-26111 Oldenburg, Germany — ²Institute of Physical Chemistry, University of Hamburg, D-20146 Hamburg, Germany

The subject of our investigations are composites of II-IV semiconductor nanoparticles synthesized by colloid chemical methods, such as trioctylphosphine oxide-trioctylphosphine (TOPO-TOP) coated CdSe nanoparticles, and conjugated polymers, i.e., derivatives of Poly-(para-Phenylene-Vinylene). These composites have been found to be promising candidates as absorbing material in photovoltaic devices. Our investigations focus on charge generation and separation, particularly the photoinduced electron transfer between polymer and nanoparticle. For this purpose, we use Photoluminescence (PL), Light-induced Electron Spin Resonance (L-ESR) and Photoinduced Absorption (PIA) measurement techniques.