<正>Organic photovoltaic devices(OPVs) show promise as the next-generation clean-energy technology with diverse applications, due to their unique merits of low-cost production with solution processability, light-weight, ultra-flexibility, good visible transparency for solar windows,aesthetic with vivid color, etc. Since the discovery of photovoltaic effect by sandwiching the Anthracene with electrodes, the OPVs has drawn more and more attention.