Raman Scattering Study of Molecules Adsorbed on ZnS Nanocrystals

• NCJ Number: 255346
• Journal: Journal of Raman Spectroscopy Volume: 38 Dated: 2007 Pages: 34-38
• Author(s): Yanfei Wang; Zhihua Sun; Hailong Hu; Shengyu Jing; Bing Zhao; Weiqin Xu; Chun Zhao; John R. Lombardi
• Date Published: 2007
• Length: 5 pages
• Grant Number(s): 2006-DN-BX-K034
• Agencies: NIJ-Sponsored
• Award: Development of Advanced Raman Spectroscopy Methods and Databases for the Evaluation of Trace Evidence and the Examination of Questioned Documents

Annotation

This article reports on a project in which the adsorption of 4‐mercaptopyridine (4‐Mpy) molecules on ZnS nanocrystals was investigated by means of Raman spectroscopy.

Abstract

The project compared the Raman signals of 4‐Mpy molecules adsorbed on ZnS nanocrystals and Ag substrate. The differences in the adsorption of 4‐Mpy molecules on the semiconductor and the metal substrate were noted. The results demonstrated that adsorbed species on the semiconductor ZnS nanocrystals can be detected by Raman spectroscopy. (publisher abstract modified)