Fig. 2From: High-Performance Multifunctional Photodetector and THz Modulator Based on Graphene/TiO2/p-Si HeterojunctionThe photoresponse measurements. a IV and time-dependent IV curves of graphene/TiO2/p-Si heterojunction. b The curves of graphene/TiO2/p-Si heterojunction at various wavelengths of lightBack to article page