Hamburg 2001 – scientific programme

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HL: Halbleiterphysik

HL 7: Poster I

HL 7.32: Poster

Monday, March 26, 2001, 10:30–19:00, Rang S\ 3

Degradation effects of hybrid solar cells — •Claus Jäger¹, Roland Bilke¹, Dietrich Haarer¹, Yuwei Fan¹, Lothar Kador¹, Karickal Haridas², and Mukundan Thelakkat² — ¹Experimentalphysik IV und Bayreuther Institut für Makromolekülforschung (BIMF), Universität Bayreuth, 95440 Bayreuth — ²Makromolekulare Chemie I, Universität Bayreuth, 95440 Bayreuth

Solid hybrid solar cells with low-molecular-weight hole transport materials (HTM) are promising systems for photovoltaic applications. These materials tend to crystallize, however, as was shown by three-dimensional Raman microscopy. The use of polymer materials as HTM suppresses the crystallization, but the solar cell efficiency is reduced due to a smaller penetration depth of the material into the nanoporous TiO₂ layer. In order to improve the filling behaviour of the HTM, heating experiments have been carried out.