Preparation and photoelectric properties of cadmium sulfide quantum dots

Gu Yue¹, Tang Libin^{2, †}, Guo Xiaopeng³, Xiang Jinzhong^{1, ‡}, Seng Teng Kar³, Ping Lau Shu⁴

(a) The full-scan XPS spectrum of the CdS QDs, (b) the Cd_3d3 and Cd_3d5 XPS spectra, (c) the S_2p XPS spectrum.