New cyclopropano 70 fullerene derivatives for the photovoltaic application
- Derbal-Habak, Hassina
- Bergeret, Céline
- Cousseau, Jack
- Nunzi, Jean-Michel
Publication date
January 2009
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
Date du colloque : 06/2009International audienceNew cyclopropano 70 fullerenes derivatives were synthesised for photovoltaic (PV) application. The organic PV cells realized with these molecules blended with RR-P3HT polymer provided improved characteristics: 1.5% conversion efficiency (eta%), 9.29 mA/cm2 current density, 0.51 V open circuit voltage and 0.34 fill factor. The IPCE spectrum for P3HT: cyclopropano 70 fullerene cells shows a new peak around 430 nm with 71% external quantum efficiency. This explains the increased current density.</p
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