| 微乳液法制备CdSe/CdS核壳纳米粒子及表征 |
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| 引用本文： | 刘选明,刘巧玲,萧小鹃,童春义,唐冬英,赵李剑.微乳液法制备CdSe/CdS核壳纳米粒子及表征[J].湖南大学学报(自然科学版),2006,33(2):90-94. |
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| 作者姓名： | 刘选明 刘巧玲 萧小鹃 童春义 唐冬英 赵李剑 |
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| 作者单位： | 湖南大学,生命科学与技术研究院,湖南,长沙,410082;化学生物传感与计量学国家重点实验室,湖南,长沙,410082 |
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| 基金项目： | 湖南省农业生物纳米技术重大专项资助(03NKY1001) |
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| 摘 要： | 研究了SDS/异戊醇/环己烷/水所组成的四元微乳体系,并将该体系用于CdSe及CdSe/CdS(核壳结构)纳米粒子的制备.在反应过程中以紫外可见吸收光谱考察了不同反应条件下粒子的成核与生长情况.实验得到的CdSe微乳液非常稳定,室温下放置数月仍未见有沉淀生成.使用荧光分光光度计和高分辨透射电镜对粒子进行表征,所得CdSe/CdS纳米粒子粒径为5 nm左右,粒径均一且具有较高的荧光强度.
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| 关 键 词： | 微乳液 硒化镉 硫化镉 Ⅱ-Ⅵ半导体 纳米粒子 |
| 文章编号： | 1000-2472（2006）02-0090-05 |
| 收稿时间： | 08 29 2005 12:00AM |
| 修稿时间： | 2005-08-29 |
Synthesis and Characterization of CdSe and CdSe/CdS Nanoparticles in Microemulsion |
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| LIU Xuan-ming,LIU Qiao-ling,XIAO Xiao-juan,TONG Chun-yi,TANG Dong-ying,ZHAO Li-jian.Synthesis and Characterization of CdSe and CdSe/CdS Nanoparticles in Microemulsion[J].Journal of Hunan University(Naturnal Science),2006,33(2):90-94. |
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| Authors: | LIU Xuan-ming LIU Qiao-ling XIAO Xiao-juan TONG Chun-yi TANG Dong-ying ZHAO Li-jian |
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| Institution: | 1. Institute of Life Science and Techrdogy , Hunan Univ, Changsha,Hunan 410082,China;2. State Key Laboratory of Chemo/Biosensing and Chemometrics,Changsha Hunan 410082,China |
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| Abstract: | A new SDS/isopentanol/cyclohexane/water microemulsion system was studied and was used to synthesize CdSe and CdSe/CdS(core/shell) nanoparticle.We used UV-vis spectroscopy to detect the progress of nucleation and growth of the particles under different conditions.The CdSe microemulsion was very stable,and could be placed at room temperature for several months without any precipitation. High-Resolution Transmission Electron Microscopy and photoluminescence spectroscopy were used to characterize these particles.The results showed that these particles were about 5nm,with good monodistribution and luminescence intensity. |
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