Partially green small molecule solar cells

Abstract

Partially green SMPV1:PC71BM solar cells were fabricated. The power conversion efficiency (PCE) of small molecule solar cells (SM-OPVs) based on non-halogen solution can reach around 5.07%. To further enhance the performance of SM-OPVs, the active layer of optimized device is treated with the solvent vapor annealing (SVA) process before depositing the electrode. The PCE of the inverted non-halogen SM-OPV can be further improved and reach over 7.0%.