Fig. 7From: The Fabrication of Ordered Bulk Heterojunction Solar Cell by Nanoimprinting Lithography Method Using Patterned Silk Fibroin Mold at Room TemperatureDevice performance characteristics of solar cell. a J-V curves and (b) EQE curves of solar cells based on the PBHJ film and OBHJ film bearing P3HT nanogratingsBack to article page