New cyclopropano 70 fullerene derivatives for the photovoltaic application
Résumé
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.
Mots clés
bulk heterojunction solar cells
C70 derivatives
current density
cyclopropano [70 ] fullerene derivatives
efficiency 1.5 percent
efficiency 71 percent
Electrons
external quantum efficiency
fullerene compounds
fullerene devices
Heterojunctions
Indium tin oxide
IPCE spectrum
Laboratories
Morphology
organic photovoltaic
photovoltaic cells
Photovoltaic systems
polymers
RR-P3HT polymer
Solar power generation
voltage 0.51 V