SnS<sub>2</sub> quantum dots: Facile synthesis, properties, and applications in ultraviolet photodetector<xref rid="cpb_28_3_037801fn1" ref-type="fn">*</xref><fn id="cpb_28_3_037801fn1"><label>*</label><p>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).</p></fn>

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 Libin^{1, 2, †}, Li Rujie^{2, 3}, Xiang Jinzhong^{1, ‡}, Teng Kar Seng⁴, Lau Shu Ping⁵

(a) Schematic representation of the synthesis of SnS₂ QDs. (b) The TEM image of SnS₂ QDs and the size distribution of the SnS₂ QDs. (c) The HRTEM image of the SnS₂ QDs with lattice fringe spacing of 0.277 nm. (d) The line-profile analysis of the SnS₂ QDs as shown in (c). (e) AFM image of the SnS₂ QDs on Si substrate. (f) The XRD pattern of the SnS₂ QDs. (g) The Raman spectrum of the SnS₂ QDs on Si substrate with schematics of E_g and A_1g Raman vibrational modes. (h) UV–Vis absorption spectra of SnS₂ QDs aqueous solution. (i) Tauc plot for estimating E_g of SnS₂ QDs.