摘要
本文通过吸收光谱、表面增强拉曼光谱、荧光光谱等手段研究了银纳米粒子与罗丹明 6G(R6G)分子之间的相互作用 ,结果表明 :银纳米粒子表面与R6G分子之间存在电荷转移效应 ,表现为吸收谱长波方向出现银粒子 R6G复合体的吸收带 ,R6G分子的拉曼振动模得到显著增强 ,而其荧光得到明显猝灭 ;Ag N特征拉曼振动带的出现说明银纳米粒子与R6G分子是通过银粒子表面的活位与R6G分子中的氮原子配位形成复合体而发生电荷转移的。
In this paper,we studied the charge transferring between silver nanoparticles and R6G molecules by UV-Vis absorption spectra, SERS and fluorescence spectra. The results indicate that the charge transferring process can be completed by forming complex between silver nanoparticles and R6G molecules. As a result,the absorption band of complex can be seen in the absorption spectra, the Raman modes of R6G are largely enhanced and the fluorescence of R6G is effectively quenched.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2001年第1期16-18,共3页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金! (项目号 :2 9971 0 0 8)
河南省教委基金! (项目号 :1 9991 4 0 0 0 5)
