Mao Chen, Lekai Xu, Jiao Wang, Baokun Liu, Kun Wang, Qi Qi, Yaqiong Zhu, Xin Yang, Wencui Chai, Peixu Yang, Weidong Zhang, Jinhui Liu, Guanwei Jia, Shaojun Zhang, Jiang Du
CdSe/Cu core/shell nanowires (NWs) are successfully synthesized by a wet chemical method for the first time. By utilizing the solution-liquid-solid (SLS) mechanism, CdSe NWs are fabricated by Bi seeds, which act as catalysts. In the subsequent radial overcoating of the Cu shell on the CdSe NWs, Fe ions have been proven to be an indispensable and efficient catalyzer. The thickness of the Cu shell could be well controlled in the range of 3 to 6 nm by varying the growth temperature (from 300 to 360 °C). Our synthetic strategy pioneers a new possibility for the controlled synthesis of semiconductor-metal heterostructure NWs (especially for II-VI semiconductors), such as CdS/Cu, ZnS/Au, and ZnO/Ag, which had broad application prospects in photoconductors, thin-film transistors, and light-emitting diodes...
January 25, 2021: Inorganic Chemistry