writer：Hu Hanmei, Liu Zhaoping, Yang Baojun, Cheng Xiangyin, Qian Yitai*
keywords：Crystal morphology, Growth from solutions, Semiconducting ternary compounds
source：期刊
specific source：J. Crystal Growth 2005, 284, 226-234.
Issue time：2005年

Cu₃SnS₄ (Kuramite, stannite group, tetragonal) nanoshell tubes have been successfully prepared on a large scale, using CuCl₂·2H₂O, SnCl₂·2H₂O (or SnCl₄·5H₂O) and thiourea as starting reactants and ethanol as solvent under mild solvothermal conditions at 200 °C. Close inspections reveal that the prepared tube-like Cu₃SnS₄ nanoshells are composed of spherical or flake-like nanoparticles. The experimental results further reveal that the preformed 1D-structured Cu⁺–thiourea complex precursor may provide an excellent template for the subsequent growth of Cu₃SnS₄ nanoshell tubes, and a so-called “template-mediated growth” mechanism was proposed for the formation of nanoparticle-based nanoshell tubes. It is found that reaction parameters, such as sulfur source, solvent and reaction temperature, play important roles in the growth of tube-like nanoshells. Photoluminescence (PL) spectrum indicates that the obtained Cu₃SnS₄ nanoshell tubes show emission band in the ultraviolet region.