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MSC Colloquium N.S. Sariciftci

Rooster

WanneerWaar
12 mei 2005 FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen
N.S. Sariciftci
N.S. Sariciftci
Speaker: Niyazi Serdar Sariciftci
Affiliation: Linzer Institut für organische Solarzellen (LIOS), Physikalische Chemie, Johannes Kepler Universität, Linz, Austria
Title: All-organic and hybrid optoelectronic photoactive devices
Date: Thu May 12, 2005
Start: 16.00 (Doors open and coffee available at 15.30)
Location: FWN-Building 5111.0080

Abstract

Recent developments on conjugated polymer-based photovoltaic diodes and photoactive organic field effect transistors (photOFETs) are reviewed. The photophysics of such photovoltaic devices is based on the photoinduced charge transfer from donor-type semiconducting conjugated polymers onto acceptor-type conjugated polymers or acceptor molecules such as Buckminsterfullerene, C 60 . This photoinduced charge transfer is reversible, ultrafast (within 40 femtoseconds) with a quantum efficiency approaching unity, and the charge-separated state is metastable (up to milliseconds at 80K). Similar to the first steps in natural photosynthesis, this photoinduced electron transfer leads to a number of potentially interesting applications which include sensitization of the photoconductivity and photovoltaic phenomena as well as photoresponsive organic field effect transistors (photOFETS). Examples of photovoltaic architectures are discussed with their potential in terrestrial solar energy conversion. Furthermore, organic polymeric/inorganic nanoparticle-based “hybrid” solar cells will be introduced and their potential discussed.

Laatst gewijzigd:22 oktober 2012 14:30