Gou Xinglong, Cheng Fangyi, Shi Yunhui, Zhang Li, Peng Shengjie, Chen Jun, Shen Panwen
Institute of New Energy Material Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China.
J Am Chem Soc. 2006 Jun 7;128(22):7222-9. doi: 10.1021/ja0580845.
We demonstrated in this paper the shape-controlled synthesis of ZnIn2S4, CuInS2, and CuInSe2 nano- and microstructures through a facile solution-based route. One-dimensional ZnIn2S4 nanotubes and nanoribbons were synthesized by a solvothermal method with pyridine as the solvent, while ZnIn2S4 solid or 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 phase formation and morphology control of ZnIn2S4 are proposed and discussed. The UV-vis absorption spectra show that the as-prepared nano- and micromaterials have strong absorption in a wide range from UV to visible light and that their band gaps are somewhat relevant to the size and morphology. The photoluminescence measurements of the ZnIn2S4 microspheres at room temperature reveal intense excitation at approximately 575 nm and red emission at approximately 784 nm. Furthermore, CuInS2 and CuInSe2 with different morphologies such as spheres, platelets, rods, and fishbone-like shapes were also obtained by similar hydrothermal and solvothermal synthesis.
在本文中，我们展示了通过一种简便的基于溶液的方法对ZnIn2S4、CuInS2和CuInSe2纳米及微观结构进行形状控制的合成。以吡啶为溶剂，通过溶剂热法合成了一维ZnIn2S4纳米管和纳米带，而在诸如十六烷基三甲基溴化铵（CTAB）或聚乙二醇（PEG）等表面活性剂存在下，通过水热法制备了ZnIn2S4实心或空心微球。提出并讨论了与ZnIn2S4的相形成和形貌控制相关的机制。紫外可见吸收光谱表明，所制备的纳米和微米材料在从紫外到可见光的宽范围内具有强烈吸收，并且它们的带隙与尺寸和形貌有一定关联。对ZnIn2S4微球在室温下的光致发光测量显示，在约575 nm处有强烈激发，在约784 nm处有红色发射。此外，通过类似的水热和溶剂热合成还获得了具有不同形貌（如球形、片状、棒状和鱼骨状）的CuInS2和CuInSe2。
