The Fabrication and Characteristics of CuPc Thin Film Phototransistor

Organic transistors consist of a vertical type are promising due to their shorter channel length. We have fabricated a vertical structure thin film phototransistor: ITO/CuPc/Al/CuPc/Cu. Detected this device and then the results show that the I-V properties of the transistors exhibit unsaturated characteristics and photosensitive characteristics. When Vec=3V, amplification factor of the device without light is 16.5 and the 625nm light amplification factor is 266.2.