SnS2 quantum dots: Facile synthesis, properties, and applications in ultraviolet photodetector*

Project supported by the Equipment Pre-research Fund under the Equipment Development Department (EDD) of China’s Central Military Commission (CMC) (Grant No. 1422030209), the Innovation Team Program of China North Industries Group Corporation Limited (NORINCO) Group (Grant No. 2017CX024), and the National Natural Science Foundation of China (Grant Nos. 61106098 and 11864044).
Li Yao1, Tang Libin1, 2, †, Li Rujie2, 3, Xiang Jinzhong1, ‡, Teng Kar Seng4, Lau Shu Ping5
       

(a) Schematic diagrams illustrating the fabrication process of the SnS2 QDs photodetector. (b) The prepared interdigitated gold electrodes. (c) The SnS2 QDs solution was drop-casted onto the interdigitated electrodes. (d) The enlarged image of the interdigitated electrodes under the microscope. (e) The J–V curves of the detector in the dark and under illumination at 365 nm with different light intensities. (f) log(J)–V curves. (g) R–V curves. (h) D*–V curves (inset: the energy band diagram of the detector).