期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 120, 期 3, 页码 1841-1846出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.5b11371
关键词
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资金
- NCN [2011/01/B/ST8/07569]
The main aim of this work was developing a novel technology for producing platforms for surface enhanced Raman scattering (SERS) Measurements on photoetched (nanostructured) GaN with Au-Cu thin film as surface plasmonic layer. Dealloying of deposited-Au-Cu films gives very stable and SERS active platforms influence of percentage of copper in the alloyed Au Cu layer on the SERS enhancement factor (EPSERS) was examined. SERS measurements were performed' using pyridine. and 4-mercaptobenzoic acid: Corresponding GaN platforms covered with Au and Au Ag layers were used as a reference. It was also shown that the formation of -even relatively large (above 1 mu m) and very regular etch pits on the GaN surface may significantly increase the SERS enhancement factor.
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