Realizing photomultiplication-type organic photodetectors based on C60-doped bulk heterojunction structure at low bias Project supported by the National Natural Science Foundation of China (Grant No. 61106043), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2015JM6267), and Program of Xi’an University of Technology, China (Grant No. 103-4515013). |
Schematic diagram of the operating mechanism of typical photovoltaic OPDs (a) and PM-type OPDs (b). |