Tip-enhanced Raman spectroscopy for investigating adsorbed species on a single-crystal surface using electrochemically prepared Au tips
Date
2007-09Author
Wang, Xi
Liu, Zheng
Zhuang, Mu-De
Zhang, Hai-Ming
Wang, Xiang
Xie, Zhao-Xiong
谢兆雄
Wu, De-Yin
吴德印
Ren, Bin
任斌
Tian, Zhong-Qun
田中群
Collections
- 化学化工-已发表论文 [14469]
Abstract
A tip-enhanced Raman instrument was set up based on a homemade optical fiber Raman head, a dispersive spectrograph, and a scanning tunneling microscope (STM) system. Electrochemical preparation of tip-enhanced Raman spectroscopy (TERS) Au tips was refined by using the etching current as ending point control, resulting in a success rate as high as 90%. The high quality Au tips allow the recording of STM images with molecular resolution and TERS spectra of nonresonant surface species on a single-crystal surface. (c) 2007 American Institute of Physics.