Berlin 2008 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 31: Poster II

HL 31.66: Poster

Dienstag, 26. Februar 2008, 16:30–19:00, Poster D

Investigation of charge transfer in organic-inorganic hybrid composites — •Marc Daniel Heinemann, Karsten von Maydell, Ingo Riedel, Joanna Kolny-Olesiak, Holger Borchert, and Jürgen Parisi — Energy- and Semiconductor Research Laboratory, Department of Physics, University of Oldenburg, Carl-von-Ossietzky-Straße 9-11, D-26111 Oldenburg

This contribution reports on investigations of the charge transfer process in hybrid solar cells using II-VI semiconductor nanocrystals as acceptor material. CdSe-nanocrystals within this polymer-based-composite have the capability to increase the light absorption compared to standard fulleren-derivatives.

The charge transfer between the conjugated polymer and the nanocrystal will be characterized by Light-induced Electron Spin Resonance (LESR) spectroscopy and Optical Detection of Magnetic Resonance (ODMR). Additionally the polaronic states will be detected by Photoinduced Absorption.

These measurements will be expanded to other hybrid composites.