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Relationship Between Photoluminescence Performance and SERS Effect of TiO2 Nanoparticles
Author(s): 
Pages: 1019-1022
Year: Issue:  5
Journal: Chemical Journal of Chinese Universities

Keyword:  表面增强拉曼散射二氧化钛电荷转移光致发光;
Abstract: 以采用溶胶-水热法制备的纯TiO2及Zn掺杂的TiO2纳米粒子作为SERS活性基底, 研究了其光致发光机制及其与表面增强拉曼散射(SERS)性能的关系. 结果表明, TiO2纳米粒子的表面缺陷和氧空位等表面性质在其光致发光和增强拉曼散射性能中发挥着重要的作用. 在表面缺陷和氧空位含量较低时, TiO2纳米粒子的光致发光光谱(PL)信号越强, 其SERS性能就越高; 当TiO2纳米粒子的表面缺陷和氧...
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