| 二维自组装结构中银纳米粒子的吸收光谱特征 |
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| 引用本文： | 周群,李晓伟,周耀国,赵宏,季媛,郑军伟.二维自组装结构中银纳米粒子的吸收光谱特征[J].光散射学报,2004,16(4):346-349. |
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| 作者姓名： | 周群 李晓伟 周耀国 赵宏 季媛 郑军伟 |
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| 作者单位： | 苏州大学化学系,苏州,215006 |
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| 基金项目： | 国家自然科学基金资助项目(20073028)，江苏省教委现代光学重点实验室基金 |
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| 摘 要： | 通过静电相互作用在聚乙烯吡啶修饰的玻璃表面组装了银纳米粒子的二维结构。吸收光谱结果表明,组装银粒子间的相互作用导致银粒子的偶极子表面等离子体共振发生较大的位移,但基本不改变四极子表面等离子体共振。银粒子表面吸附分子及周围介质直接影响其表面等离子体共振。
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| 关 键 词： | 银纳米粒子 自组装 吸收光谱 表面等离子体共振 表面修饰 |
| 文章编号： | 1004-5929(2004)04-0346-04 |
| 收稿时间： | 2003/7/1 |
| 修稿时间： | 2003年7月1日 |
Characteristic Absorption Spectroscopy of Silver Nanoparticles in Two-dimensional Assembled Structures |
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| ZHOU Qun,LI Xiao-wei,ZHOU Yao-guo,ZHAO Hong,JI Yuan,ZHENG Jun-wei.Characteristic Absorption Spectroscopy of Silver Nanoparticles in Two-dimensional Assembled Structures[J].Chinese Journal of Light Scattering,2004,16(4):346-349. |
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| Authors: | ZHOU Qun LI Xiao-wei ZHOU Yao-guo ZHAO Hong JI Yuan ZHENG Jun-wei |
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| Institution: | ZHOU Qun,LI Xiao-wei,ZHOU Yao-guo,ZHAO Hong,JI Yuan,ZHENG Jun-wei~* |
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| Abstract: | Two-dimensional structures of silver nanoparticles were assembled on polyvinylpyridine modified glass surfaces. Absorption spectra of the assemblies demonstrate that interaction between silver nanoparticles result in large shifts of dipolar surface plasmon resonance, whereas only slight effect was observed for quadrupolar surface plasmon resonance. The adsorption of molecule on the surface of the silver nanoparticles as well as surrounding media directly affect the surface plasmon resonances of the assembled silver nanoparticles. |
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| Keywords: | Silver nanoparticle Self-assembly Absorption spectroscopy Surface plasmon resonance Surface modification |
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