Preparation and Characterization of CdTe@TiO2 Composite Nanoparticles

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (11): 2153.

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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. 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.

Abstract

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

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WANG Yan-Ping, ZHANG Kai, WEI Hao-Tong, MENG Qing-Nan, ZHOU Ding, JIANG Li-Ming , YANG Bai*. Preparation and Characterization of CdTe@TiO2 Composite Nanoparticles[J]. Chem. J. Chinese Universities, 2010, 31(11): 2153.

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Preparation and Characterization of CdTe@TiO2 Composite Nanoparticles

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