Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (5): 1019.

• Articles • Previous Articles     Next Articles

Relationship Between Photoluminescence Performance and SERS Effect of TiO2 Nanoparticles

YANG Li-Bin1,2, JIANG Xin2, CHEN Lei1, RUAN Wei-Dong1, XU Wei-Qing1, ZHAO Bing1*   

  1. 1. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China;
    2. College of Chemistry and Pharmacology, Jiamusi University, Jiamusi 154007, China
  • Received:2009-04-21 Online:2010-05-10 Published:2010-05-10
  • Contact: ZHAO Bing. E-mail: zhaob@mail.jlu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20773044, 20873050)、教育部引智计划(批准号: B06009)和黑龙江省普通高等学校青年学术骨干支持计划项目(批准号: 1154G13)资助.

Abstract:

Pure and Zn-doped TiO2 nanoparticles were prepared by a sol-hydrothermal method and employed as surface-enhanced Raman scattering(SERS)-active substrates. The relationship between photoluminescence performance and SERS effect of TiO2 nanoparticles as well as photoluminescence mechanism were mainly investigated. The results indicate that surface properties of TiO2, such as surface defects and oxygen vacancies, etc, play important roles in the PL and SERS. When the contents of surface defects and oxygen vacancies are relatively low, the stronger is PL signal of TiO2 nanoparticles, the higher is SERS performance; however, when the contents of surface defects and oxygen vacancies are relatively high, the weaker is PL signal, the higher is SERS performance.

Key words: Surface-enhanced Raman scattering(SERS); TiO2; Charge transfer; Photoluminescence

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