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论文类型：期刊论文

发表时间：2014-07-01

发表刊物：JOURNAL OF RAMAN SPECTROSCOPY

收录刊物：SCIE、Scopus

卷号：45

期号：7,SI

页面范围：533-540

ISSN号：0377-0486

关键字：visualized method; charge difference density; chemical enhancement; SERS

摘要：We review our developed visualization method of charge transfer (CT) for chemical enhancement mechanism on surface-enhanced Raman scattering (SERS) and tip-enhanced Raman spectroscopy (TERS). Firstly, we describe our visualization method of charge difference density, which provides direct visual evidence for photoinduced CT. And then, using the visualization method of CT, we interpreted the mechanism of SERS and TERS. Photoinduced charge transfer in the processes of SERS and TERS can be clearly seen. Our visualization method provides a visual and easy understanding way for the mechanism of SERS and TERS. Copyright (C) 2014 John Wiley & Sons, Ltd.