期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 113, 期 33, 页码 14804-14811出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp905065z
关键词
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资金
- National Science Foundation [CBFT-0651780, CBET-0744879]
- University of Florida
- UF Research Opportunity Incentive Seed Fund
- China Scholarship Council
Here, we report a simple colloidal templating approach for fabricating surface-enhanced Raman scattering (SERS) substrates with highly reproducible enhancement over wafer-sized areas. The Substrates are produced by evaporating a thin layer of gold on highly ordered silica colloidal crystal-polymer nanocomposites created by a scalable spin-coating, technology, The ordered inorganic-organic composite structure induces the formation of island-type gold films. Systematic measurements and statistical analysis show that the Substrates exhibit high SERS reproducibility with less than 28% standard deviation over a 4 in. wafer surface. Finite element electromagnetic modeling has also been employed to simulate SERS enhancement from these structured substrates,
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