title: Base effects on fabrication of silver nanoparticles embedded silica nanocomposite for surface-enhanced Raman scattering (SERS).
abstract: In this paper, we studied on the effect of organic bases in the case of ethylene glycol based fabrication of silver nanoparticles embedded silica nanocomposite (Ag SNC) without heating. Considering their chemical structures, butylamine (BA), ethanolamine (EA), triethanolamine (TEA), tributylamine (TBA), octylamine (OA) and Jeffamine 500 (JA) were used as an organic base. In addition, the effect of the concentrations of AgNO3 and organic bases on the formation of Ag SNC was also examined. In conformity with the characteristics of Ag SNC, SERS signal intensity of benzenethiol on Ag SNC was measured. As a result, the SERS signal intensity of Ag SNCs was strongly dependent on the reaction conditions. Furthermore, when reacted under the best reaction condition with concentrations of AgNO3 and OA, 3 mM and 5 mM, respectively, a large-scale production of Ag SNC was possible under the mild conditions.
authors: Interdisciplinary Program in Nano-Science and Technology, Seoul National University, Seoul 151-744, Korea
authors: Homan
authors: H
authors: Kang
authors: Taegyu
authors: T
authors: Kang
authors: Seongyong
authors: S
authors: Kim
authors: Jong-Ho
authors: JH
authors: Kim
authors: Bong-Hyun
authors: BH
authors: Jun
authors: Jinjoo
authors: J
authors: Chae
authors: Juyoung
authors: J
authors: Park
authors: Dae-Hong
authors: DH
authors: Jeong
authors: Yoon-Sik
authors: YS
authors: Lee