Highly efficient and stable polymer solar cells （PSCs） have been fabricated by adopting solution-derived hybrid poly（ethylene glycol）-titanium oxide （PEG-TiOx） nanocomposite films as a novel and universal cathod...Highly efficient and stable polymer solar cells （PSCs） have been fabricated by adopting solution-derived hybrid poly（ethylene glycol）-titanium oxide （PEG-TiOx） nanocomposite films as a novel and universal cathode buffer layer （CBL）, which can greatly improve device performance by reducing interface energy barriers and enhancing charge extraction/collection. The performance of inverted PSCs with varied bulk-heterojunctions （BHJs） based on this hybrid nanocomposite CBL was found to be much better than those of control devices with a pure TiOx CBL or without a CBL. An excellent power conversion efficiency up to 9.05% under AM 1.5G irradiation （100 mW-cm^-2） was demonstrated, which represents a record high value for inverted PSCs with TiOx-based interface materials.展开更多
文摘Highly efficient and stable polymer solar cells （PSCs） have been fabricated by adopting solution-derived hybrid poly（ethylene glycol）-titanium oxide （PEG-TiOx） nanocomposite films as a novel and universal cathode buffer layer （CBL）, which can greatly improve device performance by reducing interface energy barriers and enhancing charge extraction/collection. The performance of inverted PSCs with varied bulk-heterojunctions （BHJs） based on this hybrid nanocomposite CBL was found to be much better than those of control devices with a pure TiOx CBL or without a CBL. An excellent power conversion efficiency up to 9.05% under AM 1.5G irradiation （100 mW-cm^-2） was demonstrated, which represents a record high value for inverted PSCs with TiOx-based interface materials.
