期刊
THIN SOLID FILMS
卷 604, 期 -, 页码 74-80出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2016.03.024
关键词
Pulsed laser deposition; Graphene; Surface enhanced Raman spectroscopy
类别
资金
- program Avenir Lyon Saint Etienne of Universite de Lyon, within the program Investissements d'Avenir [ANR-11-IDEX-0007]
We report the synthesis, characterization and use of a robust surface enhanced Raman spectroscopy platform with a stable detection for up to one year of Rhodamine R6G at a concentration of 10(-6) M. The detection of aminothiophenol and methyl parathion, as active molecules of commercial insecticides, is further demonstrated at concentrations down to 10(-5)-10(-6) M. This platform is based on large scale textured few-layer (fl) graphene obtained without any need of graphene transfer. The synthesis route is based on diamond-like carbon films grown by pulsed laser deposition, deposited onto silicon substrates covered by a Ni layer prior to diamond-like carbon deposition. The formation of fl-graphene film, confirmed by Raman spectroscopy and mapping, is obtained by thermal annealing inducing the diffusion of Ni atoms and the concomitant formation of nickel silicide compounds, as identified by Raman and Auger electron spectroscopies. The textured fl-graphene films were decorated with gold nanoparticles to optimize the efficiency of the SERS device to detect organic molecules at low concentrations. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据