| 金属-半导体异质结构纳米晶的可控制备和光谱调控 |
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| 引用本文： | 陈胜,何旭东,何嵘,曾杰.金属-半导体异质结构纳米晶的可控制备和光谱调控[J].中国科学B辑,2013(6):667-676. |
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| 作者姓名： | 陈胜 何旭东 何嵘 曾杰 |
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| 作者单位： | [1]中国科学技术大学合肥微尺度物质科学国家实验室,合肥230026 [2]中国科学技术大学化学物理系,合肥230026 |
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| 基金项目： | 国家自然科学基金（21203173）; 中国科学院战略性先导科技专项（XDB01020000）的资助 |
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| 摘 要： | 本文简要综述了金属-半导体异质结构纳米晶的设计、可控制备和物性研究的相关工作.设计了异相成核与生长、选择硫化和种子介导液相外延生长3种不同的方法并以此制备了多种金属-半导体异质结构纳米晶,对其中所涉及的反应机制进行了论述,并简要探讨了金属-半导体异质结构纳米晶的热稳定性、表面等离子共振活性、荧光特性以及异质界面的电荷转移和保持能力.
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| 关 键 词： | 异质结构 纳米晶 种子介导液相外延生长 表面等离子体共振 荧光 |
Metal-semiconductor hybrid nanocrystals： Controlled synthesis, plasmonic modulation and photoluminescence properties |
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| CHEN Sheng,HE XuDong,HE Rong,＇,ZENG Jie.Metal-semiconductor hybrid nanocrystals： Controlled synthesis, plasmonic modulation and photoluminescence properties[J].Science in China(Series B),2013(6):667-676. |
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| Authors: | CHEN Sheng HE XuDong HE Rong ＇ ZENG Jie |
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| Institution: | 1＇2. 1 Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China 2 Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | This review focuses on the methods for synthesis of metal-semiconductor hybrid nanocrystals with well-controlled shapes. Based on the strategies of heterogeneous nucleation and growth, selective sulfuration, and seed-mediated growth, we synthesized metal-semiconductor hybrid nanocrystals with a variety of compositions, including Au-CdSe, Au-PbSe, AuAg-Cu20, Au-CdS-FePt, Ag-Ag2S and Au-AgCdSe. In addition to the synthetic protocols, we also discuss the thermal stability, surface plasmon resonance properties, photoluminescence properties, and charge transfer and retention of such kind of hybrid nanocrystals. |
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| Keywords: | hybrid nanocrystals seed-mediated growth surface plasmon resonance photoluminescence |
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