【作者】 潘军； 朱永春； 钱逸泰；

【Author】 PAN Jun, ZHU Yong-chun, QIAN Yi-tai (Department of Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China)

【机构】 中国科学技术大学化学系合肥微尺度物质科学国家实验室；

【摘要】 在油酸存在条件下,以乙酸镉和硫代乙醇酸作为反应前驱物,通过简单的溶剂热方法合成子弹头状的纤锌矿硫化镉纳米晶体,粒子长约为100～150nm、宽80～120nm。用X射线衍射(XRD)、透射电子显微镜(TEM)对产物的结构和形貌进行了表征,同时对硫化镉纳米材料的紫外吸收谱和光致发光谱(PL)性能进行了表征。实验结果表明合成的样品具有很好的发光性能。更多还原

【Abstract】 Wurtzite CdS nanocrystals with bullet-like morphology were synthesized via a facile solvothermal way, using Cd(Ac)2·2H2O and C2H4O2S as starting materials, ethanolamine and water and oleic acid as solvents; The reaction conditions influencing the synthesis of these bullet-like CdS nanocrystals such as initial precursor ratios, reaction time, reaction temperatures were studied and optimized. The morphology, structure, and phase composition of CdS nanostructures were examined by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and high-resolution TEM. The room-temperature photoluminescence (PL) and Raman spectrum of the obtained CdS nanocrystals was also studied.更多还原