| 自组装金纳米粒子薄膜SERS研究 |
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| 引用本文： | 余海湖,何谋春,周灵德,姜德生.自组装金纳米粒子薄膜SERS研究[J].胶体与聚合物,2003,21(2):10-12. |
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| 作者姓名： | 余海湖 何谋春 周灵德 姜德生 |
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| 作者单位： | 1. 武汉理工大学光纤中心,武汉,430070
2. 中国地质大学资源学院,武汉,430074 |
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| 基金项目： | 湖北省自然科基金资助项目(2000J002) |
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| 摘 要： | 采用静电自组装技术制备了金纳米粒子薄膜,研究了薄膜的表面增强拉曼散射(SERS)活性。自组装金纳米粒子薄膜具有明显的SERS效应,其中2双层薄膜的增强效应最强。金纳米粒子相互靠近但又不至于连通的状态具有最强的增强效果。若金纳米粒子通过点、面接触形成连通网络,将导致入射光激发表面等离子体波的机率下低,使增强效果降低。
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| 关 键 词： | SERS活性 金纳米粒子 静电自组装 薄膜 |
| 修稿时间： | 2003年1月12日 |
SERS-Activity of Electrostatically Self-Assembled Films of Gold Nanoparticles |
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| Yu Haihu,He Mouchun,Zhou Lingde,Jiang Desheng.SERS-Activity of Electrostatically Self-Assembled Films of Gold Nanoparticles[J].Chinese Journal of Colloid and Polymer,2003,21(2):10-12. |
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| Authors: | Yu Haihu He Mouchun Zhou Lingde Jiang Desheng |
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| Affiliation: | Yu Haihu1 He Mouchun2 Zhou Lingde1 Jiang Desheng1 |
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| Abstract: | Multilayer films of gold nanoparticles were prepared via electrostatic self-assembly approach and characterized by surface-enhanced Raman scattering (SERS). The self-assembled multilayer films of gold particles exhibited an SERS-effect, and the 2-bilayer films were of the strongest SERS-activity. If the gold particles within the films are close enough but not directly contact, the films will exhibit a strong SERS-effect. However, if the particles contact each other and conducting networks form within the films, the possibility of surface plasmon resonance will be lowed and the SERS-effect of the films will become poor. |
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| Keywords: | SERS Activity Gold Nanoparticle Electrostatic Self-assembly Thin Film |
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