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在玻璃、白宝石和石英基片上 ,利用化学沉积法和溶胶法制备了纳米结构活性银膜 ,系统地研究了两种不同方法制备的单壁碳纳米管 (SWNT)的表面增强拉曼光谱 (SERS)的 G带和 D带 .同一样品的 G带 ,在不同基片上的峰移量不同 ,在白宝石基片上移动更大 ,峰强更高 ,可以更敏感地反映 SERS效应 .D带的峰形随基片不同而改变 .金属性管的含量较高的样品 ,其 D带光谱的峰移较半导体性管含量较高的样品更显著 ,表明金属性碳纳米管与 SERS活性银膜的界面相互作用更强 .
Nanostructured active silver films were prepared by chemical deposition and sol-gel methods on glass, white sapphire and quartz substrates. The surface enhanced Raman spectra of SWNT prepared by two different methods SERS), G band and D band.The G band of the same sample, different peak shift on different substrates, move more on the white stone substrate, higher peak intensity, can more sensitively reflect the SERS effect .D band The peak shape changes with different substrate.The samples with higher content of metallic tube have more prominent D-band spectral shift than those with higher content of semiconductive tube, which indicates that the relationship between metallic carbon nanotubes and SERS active silver film Interface interaction stronger.