Photodetectors based on small-molecule organic semiconductor crystals*

Project supported by the National Natural Science Foundation of China (Grant Nos. 51672180, 51622306, and 21673151), Collaborative Innovation Center of Suzhou Nano Science & Technology, the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the 111 Project, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices.

Pan Jing, Deng Wei, Xu Xiuzhen, Jiang Tianhao, Zhang Xiujuan, Jie Jiansheng
       

(a) Schematic illustration of an SQ nanowires/Ti Schottky photodiode. (b) Optical microscopy image of the integrated SQ nanowires/Ti Schottky photodiode. (c) Energy band diagram of the SQ nanowires/Ti Schottky junction. (d) Distribution of the rectification ratio for each Schottky-type device in dark. (e) 2D contrast map of the integrated Schottky-type photodiode under 0.1 mW·cm−2 white light. (a)–(e) Reproduced with permission.[55] Copyright 2013, American Chemical Society. (f) SEM image of a single SQ nanowire/c-Si device. (g) Wavelength-dependent R and D* of the SQ nanowire/c-Si device. (f), (g) Reproduced with permission.[56] Copyright 2014, American Chemical Society.