摘要
Organic phototransistors based on high-quality 2,8-dichloro-5,11-dihexyl-indolo[3,2-b]carbazo(CHICZ)single crystals show the highest photoresponsivity of 3×10^3 A W^-1, photosensitivity of 2×10^4 and the detectivity can achieve 8.4×10^14 Jones. We also discovered good linear dependence of log(photosensitivity) versus the wavelength when the devices were illuminated with a series of sameintensity but different-wavelength lights. The organic phototransistors based on CHICZ single crystal have potential applications in wavelength-detection.
高质量的2, 8-二氯-5, 1 1-二己基-吲哚[3, 2-b]咔唑(CHICZ)单晶被应用于光电晶体管,并表现出高性能的光响应度(Rmax=3×10~3A W-1)和光敏感性(Pmax=2×10~4以及Dmax*=8.4×10^(14)Jones).此外,我们首次发现当这些器件被一系列相同强度但不同波长的光照亮时,光敏度的对数与波长呈现非常好的线性关系.这一现象为拓展有机光控晶体管在波长检测中的应用提供了新视角.
作者
Mengxiao Hu
Jinyu Liu
Qiang Zhao
Dan Liu
Qing Zhang
Ke Zhou
Jie Li
Huanli Dong
Wenping Hu
胡梦笑;刘金雨;赵强;刘单;张晴;周科;李洁;董焕丽;胡文平(Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University;Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences;Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University)
基金
financial support from the Ministry of Science and Technology of China (2017YFA0204503 and 2016YFB0401100)
the National Natural Science Foundation of China (51725304, 51633006, 51703159 and 51733004)
the Strategic Priority Research Program (XDB12030300) of the Chinese Academy of Sciences
