Novel organic-perovskite hybrid structure forward photo field effect transistor

Abstract To enhance photosensitive performances for an organic thin film transistor, we fabricated a hybrid structured transistor with C8BTBT film as organic active layer, onto which, a CH3NH3PbI3 layer was formed through the vacuum deposition. The phototransistor showed the best photo responsivity as high as 33 A/W, much higher than most other organic based thin film transistors, in addition to keeping fast response time and well gate tunable ability. The working mechanism were further investigated with the temperature dependence measurement. The organic-perovskite hybrid transistor may open up a path way for the optimization of organic photo sensitive transistors.