Cross-linkable azido C60-fullerene derivatives for efficient thermal stabilization of polymer bulk-heterojunction solar cells

Abstract

Original [60]PCBM-inspired fullerene derivatives bearing an azido functional group were synthesized. By incorporating an optimized quantity of this thermal cross-linker additive in the P3HT:[60]PCBM photoactive layer, an impressive stabilization of the bulk-heterojunction morphology at its optimal photovoltaic performance was achieved.