A General One-Pot Approach to Synthesize Binary and Ternary Metal Sulfide Nanocrystals

Nanoscale Research Letters

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[1] 0000 0004 1762 4370, grid.443328.a, School of Electrical and Photoelectronic Engineering, Changzhou Institute of Technology, 213032, Changzhou, China;Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiao Tong University, 100044, Beijing, China;

关键词: One-pot approach;    Metal sulfide;    Nanocrystals;    Metal-thiolate;    Photoluminescence;    Synthesis;   

DOI  :  10.1186/s11671-019-2856-7

来源: publisher

【 摘 要 】

A general one-pot approach is developed to synthesize a series of binary metal sulfide nanocrystals (NCs) including PbS, Cu2S, ZnS, CdS, Ag2S, and ternary CuInS2 and CdS:Cu(I) NCs. This synthetic approach involves thermal decomposition of the mixture of inorganic metal salts and n-dodecanethiol (DDT) without pre-synthesis of any organometallic precursors. In this method, layered metal-thiolate compound is formed at the beginning of the reaction and then this intermediate compound is decomposed into small particles, leading to further growth as the reaction time increases. The as-obtained CdS NCs exhibits a broad but weak surface-state emission, and the Cu(I) doping leads to a red-shift of the emission band due to the Cu(I)-related emission. It is expected that this one-pot approach can be extended to prepare multinary metal sulfide NCs.

【 授权许可】

CC BY