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• 作者：James W. Orr Jr. ; Wendel R. Naumann ; Pedro Escobar
• 关键词：ld ; Nanoparticles ; Surface plasmon ; Refractive index
• 刊名：Gynecologic Oncology
• 出版年：2008
• 出版时间：April 2008
• 年：2008
• 卷：109
• 期：1
• 页码：147-151
• 全文大小：151 K

文摘

Photocatalytic deposition of Au nanoparticles from a mixed aqueous solution of HAuCl₄ and ethylene glycol onto TiO₂ films (Au/TiO₂ films) was carried out by using ultraviolet light irradiation at room temperature. In the optical absorption spectra of the Au/TiO₂ film, the localized surface plasmon resonance (LSPR) peak of Au nanoparticles was observed at 534.5 nm. When the film was immersed in various kinds of solutions, such as alcohols, NaCl and d-glucose aqueous solutions, a linear relation was clearly observed between the LSPR peak wavelength and the refractive index of the solutions, in the range of 1.0003–1.4181.