1 March 2011 Surface enhanced Raman radiation of crystal violet dye with a SiO2 buffer
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Abstract
Surface enhanced Raman radiation of crystal violet dye has been studied by modulating the localized surface plasmon effect of silver nanoparticles. In the experiment, a buffer layer of silicon dioxide (SiO2) was established between crystal violet dye and silver nanoparticles. With a probe of laser beam of 532 nm in wavelength, it was found that the intensity of the Raman scattering significantly depended on the thickness of SiO2 layer. A maximum Raman-radiation intensity occurred with a 10nm-thicked SiO2 layer. The experimental observation shows a possible modulation of surface enhanced Raman radiation by a proper dielectric buffer.
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Tung-Kai Liu, Tung-Kai Liu, Wen-Chi Hung, Wen-Chi Hung, Ming-Shan Tsai, Ming-Shan Tsai, Chia-Ling Lo, Chia-Ling Lo, Yu-Sung Lin, Yu-Sung Lin, Chie-Tong Kuo, Chie-Tong Kuo, I-Min Jiang, I-Min Jiang, } "Surface enhanced Raman radiation of crystal violet dye with a SiO2 buffer", Proc. SPIE 7947, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VIII, 79470W (1 March 2011); doi: 10.1117/12.874755; https://doi.org/10.1117/12.874755
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