高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (11): 2153.

• 研究论文 • 上一篇    下一篇

CdTe@TiO2复合纳米微粒的制备与表征

王燕萍1, 张恺1, 魏浩桐1, 孟庆男1, 周鼎1, 姜力铭2, 杨柏1   

  1. 1. 吉林大学超分子结构与材料国家重点实验室, 长春 130012;
    2. 吉林大学口腔医学院, 长春 130023
  • 收稿日期:2010-07-05 出版日期:2010-11-10 发布日期:2010-11-10
  • 通讯作者: 杨柏, 男, 博士, 教授, 博士生导师, 主要从事聚合物有序结构与光功能材料的研究. E-mail: byangchem@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 50973039, 20804017)和长春应用化学研究所高分子物理与化学国家重点实验室开放课题资助.

Preparation and Characterization of CdTe@TiO2 Composite Nanoparticles

WANG Yan-Ping1, ZHANG Kai1, WEI Hao-Tong1, MENG Qing-Nan1, ZHOU Ding1, JIANG Li-Ming2 , YANG Bai1*   

  1. 1. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China;
    2. School of Stomatology, Jilin University, Changchun 130021, China
  • Received:2010-07-05 Online:2010-11-10 Published:2010-11-10
  • Contact: YANG Bai. E-mail: byangchem@jlu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50973039, 20804017)和长春应用化学研究所高分子物理与化学国家重点实验室开放课题资助.

摘要: 利用溶胶-凝胶法合成了CdTe@TiO2复合纳米微粒. 采用扫描和透射电镜对复合微粒的形貌和结构进行了表征, 并探讨了其形成机理. 通过对复合微粒的光谱性质研究发现, 与TiO2复合后, CdTe纳米微粒的荧光有减弱的趋势, 但却具有相似的荧光寿命, 其荧光寿命都短于原CdTe纳米微粒水溶液中的荧光寿命, 说明该材料作为新一代太阳能电池具有非常大的潜力.

关键词: 碲化镉, 二氧化钛, 复合, 荧光寿命

Abstract: The composition of TiO2 and aqueous CdTe nanoparticles were prepared via sol-gel method. The morphology and structure of the CdTe@TiO2 composite nanoparitcles were characterized by SEM and TEM instruments and their mechanism of formation was proposed. The investigation of their photoluminescence(PL) properties show that the PL intensity of CdTe nanoparticles become weaker than their parent aqueous solution. These composite nanoparticles exhibit similar fluorescence lifetime, which is shorter than those in the aqueous solution. These experimental results indicate that the CdTe@TiO2 composite nanoparticles have potential application in the filed of solar cells.

Key words: CdTe, TiO2, Composite, Fluorescence lifetime

TrendMD: