| 关于氯离子对银胶体系SERS效应的进一步增强机理 |
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| 引用本文： | 司民真,武荣国,张鹏翔.关于氯离子对银胶体系SERS效应的进一步增强机理[J].光谱学与光谱分析,2001,21(3):343-346. |
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| 作者姓名： | 司民真 武荣国 张鹏翔 |
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| 作者单位： | 1. 楚雄师专物理系
2. 云南工业大学数理材料学院 |
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| 摘 要： | 在一些情况下添加氯离子能引起表面增强拉曼散射的进一步增强，本文提出了SERS效应中氯离子在银胶粒子和分子之间搭桥，从而促成吸附并引进一步增强的观点。设计了实验，验证了该观点的正确性。
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| 关 键 词： | 表面增强拉曼散射 阴离子型分子 银胶体系 氯离子 SERS效应 |
| 修稿时间： | 1999年9月27日 |
The Enhanced Mechanism of Cl- to SERS in Silver Colloid |
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| M Si,R Wu,P Zhang.The Enhanced Mechanism of Cl- to SERS in Silver Colloid[J].Spectroscopy and Spectral Analysis,2001,21(3):343-346. |
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| Authors: | M Si R Wu P Zhang |
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| Institution: | Department of Physics, Chuxiong Teacher's College, 675000 Chuxiong. |
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| Abstract: | The SERS is enhanced when KCl is added to silver colloid and cation molecule.The hypothesis supposed that Cl - bridged between nano silver and molecule,as a result the molecule adsorbing on nano silver surface is promoted and the SERS is therefore enhanced.The CN - and NH 3 can be better adsorbed when they are added separately to the nano silver particles,Cl - and anion molecule.The SERS reduces when CN - and NH 3 are added separately to Cl - ,anion molecule and silver colloid.The result is that the CN - and NH 3 are so strong that they have replaced Cl - and anion molecules.Therefore the SERS reduces.This has proved the bridge role of Cl -. |
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| Keywords: | Surface enhanced Raman scattering Anion molecule Cation molecule The bridge role of Cl - |
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