Shape-Controlled Synthesis of Ternary Chalcogenide ZnIn2S4 and CuIn(S,Se)2 Nano-/Microstructures via Facile Solution Route

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• 作者：Xinglong Gou ; Fangyi Cheng ; Yunhui Shi ; Li Zhang ; Shengjie Peng ; Jun Chen ; and Panwen Shen
• 刊名：Journal of the American Chemical Society
• 出版年：2006
• 出版时间：June 7, 2006
• 年：2006
• 卷：128
• 期：22
• 页码：7222 - 7229
• 全文大小：812K
• 年卷期：v.128,no.22(June 7, 2006)
• ISSN：1520-5126

文摘

We demonstrated in this paper the shape-controlled synthesis of ZnIn₂S₄, CuInS₂, and CuInSe₂nano- and microstructures through a facile solution-based route. One-dimensional ZnIn₂S₄ nanotubes andnanoribbons were synthesized by a solvothermal method with pyridine as the solvent, while ZnIn₂S₄ solidor hollow microspheres were hydrothermally prepared in the presence of a surfactant such as cetyltrimethylammonium bromide (CTAB) or poly(ethylene glycol) (PEG). The mechanisms related to the phaseformation and morphology control of ZnIn₂S₄ are proposed and discussed. The UV-vis absorption spectrashow that the as-prepared nano- and micromaterials have strong absorption in a wide range from UV tovisible light and that their band gaps are somewhat relevant to the size and morphology. Thephotoluminescence measurements of the ZnIn₂S₄ microspheres at room temperature reveal intenseexcitation at ~575 nm and red emission at ~784 nm. Furthermore, CuInS₂ and CuInSe₂ with differentmorphologies such as spheres, platelets, rods, and fishbonelike shapes were also obtained by similarhydrothermal and solvothermal synthesis.