| 密排银颗粒薄膜的制备及其SERS应用 |
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| 引用本文： | 周宁,刘涛,李东升,杨德仁. 密排银颗粒薄膜的制备及其SERS应用[J]. 光散射学报, 2012, 24(3): 251-255 |
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| 作者姓名： | 周宁 刘涛 李东升 杨德仁 |
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| 作者单位： | 浙江大学硅材料国家重点实验室材料科学与工程学系,杭州,310027 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助(2010QNA4001);国家自然科学基金(61176117);863项目(2011AA050517) |
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| 摘 要： | 银纳米颗粒通过自组装形成二维结构薄膜具有独特的光学性质,其提供的大量“热点”使其成为优越的表面增强拉曼散射(Surface enhanced Raman Scattering,SERS)基底.本文采用水/正己烷界面上自组装的方法得到了由密排的银纳米颗粒构成的薄膜,并以Rhodamine 6G为探针分子,比较了不同尺寸银...
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| 关 键 词： | 自组装 银 纳米颗粒 表面增强拉曼散射 |
| 收稿时间： | 2011-06-30 |
Fabrication of Ag Films Composed of Close-Packed Nanoparticles and Their Surface-Enhanced Raman Scattering Effects |
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| ZHOU Ning , LIU Tao , LI Dong-sheng , YANG De-ren. Fabrication of Ag Films Composed of Close-Packed Nanoparticles and Their Surface-Enhanced Raman Scattering Effects[J]. Chinese Journal of Light Scattering, 2012, 24(3): 251-255 |
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| Authors: | ZHOU Ning LIU Tao LI Dong-sheng YANG De-ren |
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| Affiliation: | (State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | Two dimensional nanostructures film silver nanoparticles(NPs) formed through self-assembly method exhibit an unique optical property,including extraordinarily offering large amounts of "hot spots",which make them ideal candidate of surface-enhanced Raman scattering substrate.In this paper,large-area Ag films composed of close-packed NPs were fabricated by taking advantage of self-assemble at heptanes/water interface.Using Rhodamine 6G(R6G) as probing molecules,the SERS characteristic of the films composed of silver NPs with variant sizes was exploited.It is found that films with Ag size of 160 nm exhibited optimal enhancement effect.Moreover,the films made of closely-packed NPs unambiguously showed much enhancement than the films composed of sparse ones by simply dropping Ag sols. |
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| Keywords: | self-assemble Ag nanoparticles SERS |
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