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SYOP: Symposium Organic Photovoltaics: From Single Molecules to Devices

SYOP 4: Organic Photovoltaics: from Single Molecules to Devices

SYOP 4.59: Poster

Donnerstag, 26. März 2009, 16:30–19:00, P1A

Spatially resolved luminescence measurements on polymer photovoltaic cells — •Marco Seeland^1,2, Florian Kühnlenz¹, Harald Hoppe¹, Gerhard Gobsch¹, Martin Kasemann², and Wilhelm Warta² — ¹Institute of Physics, Technical University Ilmenau, 98673 Ilmenau, Germany — ²Fraunhofer Institute for Solar Energy Systems (ISE), 79110 Freiburg, Germany

We applied spatially resolved luminescence measurements for studying degradation of P3HT:PCBM bulk heterojunction polymer solar cells. This technique is useful to clarify the influence of impurities that are imposed on the solar cell during its production. Upon application of a forward bias to the photovoltaic devices the generated electroluminescence is detected in a CCD-Camera. The obtained images allow us to get a direct view on the advancing degradation patterns and also to study the influence of varying processing parameters.