光散射学报, 2014, 26 (1): 27, 网络出版: 2014-12-08   

玻璃基质中银纳米粒子的表面增强拉曼光谱研究

A Study of Surface-Enhanced Raman Spectroscopy Based on Ag Nanoparticles Embedded in Glass Matrix
作者单位
南开大学物理科学学院, 天津 300071
摘要
本文利用离子交换技术结合后续处理过程在玻璃基质中引入Ag纳米粒子, 首先通过Ag+交换把Ag+引入到载玻片中, 再结合进一步的K+交换或后续热退火处理使Ag+还原成Ag纳米粒子。分别采用吸收光谱和扫描电子显微镜(Scanning Electron Microscope, SEM)对所制备的Ag纳米粒子进行光学性质和表面形貌的表征。为了研究Ag纳米粒子的表面增强拉曼散射(Surface Enhanced Raman Scattering, SERS)活性, 我们分别以含Ag纳米粒子的载玻片和不同浓度的罗丹明6G(R6G)溶液作为基底和探针分子进行了拉曼光谱测试, 基底呈现良好的增强效果。根据表面增强拉曼光谱的测试结果, 给予相应的分析和解释。
Abstract
Ag nanoparticles (NPs) are introduced into glass matrix through the ion exchange technology and subsequent treatment process, where silver ions are introduced into microscope slides in the silver ion exchange process firstly, and reduced into silver nanoparticles in subsequent potassium ion exchange or heat annealing treatment. Optical absorption measurements and Scanning Electron Microscope (SEM) are used to characterize the optical characterizations and surface morphology of the Ag NPs, respectively. In order to study their SERS activities, the glass matrix contained Ag NPs were used as the substrate and different concentrations of R6G solution as the probe molecule. The surface enhanced Raman spectra have been obtained and the results are discussed.
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丁瑞平, 王蒙, 孙希鹏, 王玉芳. 玻璃基质中银纳米粒子的表面增强拉曼光谱研究[J]. 光散射学报, 2014, 26(1): 27. DING Rui-ping, WANG Meng, SUN Xi-peng, WANG Yu-fang. A Study of Surface-Enhanced Raman Spectroscopy Based on Ag Nanoparticles Embedded in Glass Matrix[J]. The Journal of Light Scattering, 2014, 26(1): 27.

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