| 1. | Lanzi M.♦, Paganin L.♦, Pierini F.♦, Errani F.♦, Di-Nicola F.P.♦, Use of poly(3-methylthio)thiophene blends for direct laser tracing and bulck heterojunction solar cells, REACTIVE AND FUNCTIONAL POLYMERS, ISSN: 1381-5148, DOI: 10.1016/j.reactfunctpolym.2014.07.007, Vol.83, pp.33-41, 2014 Abstract:In this article we demonstrate the use of a blend made of two regioregular polythiophenic derivatives, namely poly(3-methylthio)thiophene and poly(3-hexyl)thiophene, to obtain conductive traces by the simple laser exposure of their thin films to a suitable laser source. The polymeric blend was also tested as a photoactive layer for BHJ solar cells, showing an improved surface morphology and a wider absorption spectrum, thus resulting in an enhanced photovoltaic performance. In the standard condition normally used for the cell preparation, we obtained a 3.16% power conversion efficiency. The device showed good reproducibility and stability over time. Keywords:Electrical conductivity, Laser tracing, Bulk heterojunction polymeric solar cells, Regioregular polyalkylthiophenes, Polymer blends Affiliations:| Lanzi M. | - | University of Bologna (IT) | | Paganin L. | - | University of Bologna (IT) | | Pierini F. | - | other affiliation | | Errani F. | - | University of Bologna (IT) | | Di-Nicola F.P. | - | University of Bologna (IT) |
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