Preparation of Single-Layer MoS2xSe2(1-x) and MoxW1-xS2 Nanosheets with High-Concentration Metallic 1T Phase

Author(s): Tan, C; Zhao, W; Chaturvedi, A; Fei, Z; Zeng, Z; Chen, J; Huang, Y; Ercius, P; Luo, Z; Qi, X; Chen, B; Lai, Z; Li, B; Zhang, X; Yang, J; Zong, Y; Jin, C; Zheng, H; Kloc, C; Zhang, H | Abstract: © 2016 Wiley-VCH Verlag GmbH a Co. KGaA. The high-yield and scalable production of single-layer ternary transition metal dichalcogenide nanosheets with ≈66% of metallic 1T phase, including MoS2xSe2(1-x)and MoxW1-xS2is achieved via electrochemical Li-intercalation and the exfoliation method. Thin film MoS2xSe2(1-x)nanosheets drop-cast on a fluorine-doped tin oxide substrate are used as an efficient electrocatalyst on the counter electrode for the tri-iodide reduction in a dye-sensitized solar cell.