Organic single-crystal phototransistor with unique wavelength-detection characteristics  

具有独特波长检测特性的有机单晶光电晶体管（英文）

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)

机构地区：[1]Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University [2]Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences [3]Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University

出　　处：《Science China Materials》2019年第5期729-735,共7页中国科学（材料科学（英文版）

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

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.

关 键 词：organic phototransistor single crystal photoresponsivity PHOTOSENSITIVITY wavelength-detection 

分 类 号：TN32[电子电信—物理电子学]