| 核/壳结构CdSe/CdS纳米晶的制备及其光稳定性 |
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| 引用本文： | 石鹏. 核/壳结构CdSe/CdS纳米晶的制备及其光稳定性[J]. 半导体光电, 2007, 28(3): 383-385,390 |
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| 作者姓名： | 石鹏 |
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| 作者单位： | 呼伦贝尔学院,物理系,内蒙古,呼伦贝尔,021008 |
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| 摘 要： | 在水溶液中制备了CdSe纳米晶和核/壳结构CdSe/CdS纳米晶,用X射线粉末衍射和X射线光电子能谱对其进行了表征.比较了新制样品与放置30天后样品的吸收光谱和发射光谱,结果表明核/壳结构CdSe/CdS纳米晶具有更好的光学稳定性,可望在光致发光器件和生物荧光标记上得到应用.
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| 关 键 词： | CdSe/CdS 纳米晶 光稳定性 |
| 文章编号： | 1001-5868（2007）03-0383-03 |
| 修稿时间： | 2006-12-01 |
Study on Photo-stability and Preparation of Core/Shell CdSe/CdS Nanocrystals |
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| SHI Peng. Study on Photo-stability and Preparation of Core/Shell CdSe/CdS Nanocrystals[J]. Semiconductor Optoelectronics, 2007, 28(3): 383-385,390 |
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| Authors: | SHI Peng |
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| Affiliation: | Dept. of Physics, Hulun Buir College, Hulun Buir 021008, CHN |
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| Abstract: | CdSe nanocrystals and core/shell CdSe/CdS nanocrystals were prepared in the aqueous solution,and they were characterized by X-ray powder diffraction patterns and X-ray photoelectron spectroscopy.The photoluminescence and absorption spectra of the fresh samples and the aged samples(after 30 days) were compared.The experimental results indicate that the photo-stability of the core/shell CdSe/CdS nanocrystals was enhanced,which lay a foudation for the application in luminescence device and the biological fluorescent labels. |
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| Keywords: | CdSe/CdS nanocrystals photo-stability |
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