A review of the preparation and applications of graphene/semiconductor composites

Recent progress on the preparation and applications of graphene /semiconductor composites in advanced energy storage and conversion devices is summarized.The semiconductors covered include ZnO,SnO2,CdS,MnO2,TiO2,CdSe quantum dots and Fe2O3.Their preparation and applications focus on lithium-ion batteries w ith improved electronic conductivity,electrochemical capacitors w ith high energy and pow der density,solar cells w ith high photoelectric conversion efficiency,photocatalysts w ith high photodegradation activity and sensors w ith high sensitivity.Future possible development trends include decreasing the preparation cost,obtaining a fuller understanding of the interaction betw een graphene and semiconductors,and revealing the relationships betw een compositions,microstructures and properties.