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| CdS纳米锥的合成以及光致发光性能研究 | |
| 引用本文： | 陈志刚,邹进,刘岗,李锋,逯高清,成会明.CdS纳米锥的合成以及光致发光性能研究[J].电子显微学报,2007,26(5):423-427. |
| 作者姓名： | 陈志刚 邹进 刘岗 李锋 逯高清 成会明 |
| 作者单位： | 1. 沈阳材料科学国家(联合)实验室,中国科学院金属研究所,辽宁,沈阳,110016;ARC Centre of Excellence for Functional Nanomaterials,The University of Queensland,QLD 4072,Australia 2. School of Engineering and Centre for Microscopy and Microanalysis,The University of Queensland,St Lucia QLD 4072,Australia 3. 沈阳材料科学国家(联合)实验室,中国科学院金属研究所,辽宁,沈阳,110016 |
| 基金项目： | Key Research Programof M0ST,China（2006CB932703）; Australia Research Council Project. |
| 摘 要： | 将商用CdS粉在真空炉中通过简单的热蒸发获得了大量高纯的CdS锥状纳米结构.扫描电子显微镜(SEM)、透射电子显微镜(TEM)观察和X射线衍射谱(XRD)的分析表明:CdS纳米锥状晶体为六角硫镉矿晶体结构,其形状为典型的纳米锥,晶格常数为a=0.413 nm,c=0.671 nm,沿着0001]方向生长.CdS纳米锥的长度是20 μm到50 μm,直径从～100 nm减少到～20 nm.本文还详细研究了CdS纳米锥晶体的拉曼特性及其在激光辐射下的室温光致发光行为,探讨了绿光(波长为～512 nm)发射的机制.结果表明,这种CdS纳米锥可能用于新颖的光学器件. |
| 关 键 词： | CdS 高纯度纳米锥 光致发光 CdS high purity nanocones photoluminescence |
| 文章编号： | 1000-6281（2007）05-0423-05 |
| 修稿时间： | 2007-06-01 |
Synthesis and photoluminescence of CdS nanocones |
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| CHEN Zhi-gang,ZOU Jin,LIU Gang,LI Feng,LU Gao-qing,CHENG Hui-ming.Synthesis and photoluminescence of CdS nanocones[J].Journal of Chinese Electron Microscopy Society,2007,26(5):423-427. | |
| Authors: | CHEN Zhi-gang ZOU Jin LIU Gang LI Feng LU Gao-qing CHENG Hui-ming |
| Affiliation: | 1.Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang Liaoning 110016,China;2.ARC Centre for Functional Nanomaterials,The University of Queensland,QLD 4072,Australia;3.School of Engineering and Centre for Microscopy and Microanalysis,The University of Queensland,QLD 4072,Australia |
| Abstract: | High purity CdS nanocones were obtained through a simple thermal evaporation process with highly active CdS nanoparticles as the evaporation source. It was found that these CdS nanocones had a single crystal hexagonal wurtzite structure growing along the 0001 ] direction. They had a cone-shaped morphology with typical length of 20 μm to 50 μm and their diameter decreases from ～ 100 nm to 20 nm with lattice constants of a = 0.413 nm and c = 0.671 nm. The photoluminescence (PL)characterization of the CdS nanocones shows strong near-band UV emission (about 512 nm), which indicates that the CdS nanocones have potential application in optoelectronic devices. |
| Keywords: | CdS high purity nanocones photoluminescence |
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