title: Enhanced Raman scattering as a probe for 4-mercaptopyridine surface-modified copper oxide nanocrystals.
abstract: We report on the application of Raman scattering as a probe to study 4-mercaptopyridine (4-Mpy) surface-modified CuO nanocrystals. Enhanced Raman scattering from 4-Mpy adsorbed on CuO nanocrystals was observed. The Raman signals displayed 10(2) enhancement compared with those of 4-Mpy in solution. We compared the Raman spectra of 4-Mpy molecules adsorbed on CuO nanocrystals and Ag, Cu substrate. A particular feature of the semiconductor substrate that was different from the metal substrate was revealed. The excitation wavelength-dependent behavior was clearly observed.
authors.affiliation: Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun, PR China.
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Wang
authors.forename: Hailong
authors.initials: H
authors.lastname: Hu
authors.forename: Shengyu
authors.initials: S
authors.lastname: Jing
authors.forename: Yunxin
authors.initials: Y
authors.lastname: Wang
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Sun
authors.forename: Bing
authors.initials: B
authors.lastname: Zhao
authors.forename: Chun
authors.initials: C
authors.lastname: Zhao
authors.forename: John R
authors.initials: JR
authors.lastname: Lombardi