Optische und elektrische Spektroskopie an alternativen Absorbermaterialien für organische Solarzellen

In this thesis several issues dealing with organic photovoltaics are discussed. Optical measurements on polymers and polymer-fullerene blends are shown to demonstrate, in principle, if these materials and material combinations are suitable for organic solar cell applications. An optimal post-heat treatment of the PEDOT:PSS interfacial layer in the organic solar cell is shown. A part of this thesis is concerned with studies of different alternative materials and concepts. Low-band-gap-polymers as well as double-cable-polymers and full polymer solar cells are investigated. These materials show potential but they do not reach the efficiency of standard organic solar cells. Further, different fullerene derivatives are analyzed. Another main part of the thesis is the impedance spectroscopy. An equivalent circuit out of capacities and resistances is found to fit the experimental data. Thereby it is notable that the capacity describing the active layer is connected in parallel to the system.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Oldenburg

Year

2006

Author dc:creator

• Knipper, Martin

• [Keine Schlagwörter von Autor/in vergeben.]

Repository record source_url

http://oops.uni-oldenburg.de/79

OAI identifier oai:identifier

oai:oops.uni-oldenburg.de:79