Title :
New cyclopropano[70]fullerene derivatives for the photovoltaic application
Author :
Derbal, H. ; Bergeret, C. ; Cousseau, J. ; Nunzi, J.-M.
Author_Institution :
POMA Lab., Univ. of Angers, Angers, France
fDate :
June 28 2009-July 2 2009
Abstract :
New 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.
Keywords :
fullerene compounds; fullerene devices; photovoltaic cells; polymers; IPCE spectrum; RR-P3HT polymer; current density; cyclopropano [70 ] fullerene derivatives; efficiency 1.5 percent; efficiency 71 percent; external quantum efficiency; photovoltaic cells; voltage 0.51 V; Current density; Electrons; Heterojunctions; Indium tin oxide; Laboratories; Morphology; Photovoltaic cells; Photovoltaic systems; Polymers; Solar power generation; C70 derivatives; bulk heterojunction solar cells; morphology; organic photovoltaic;
Conference_Titel :
Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on
Conference_Location :
Azores
Print_ISBN :
978-1-4244-4825-8
Electronic_ISBN :
978-1-4244-4827-2
DOI :
10.1109/ICTON.2009.5185170
