高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (6): 1106.

• 研究论文 • 上一篇    下一篇

通过静电相互作用制备CdTe/SiO2纳米复合物

赵奎, 李军, 王林, 潘凯, 刘艳梅, 白玉白, 李铁津   

  1. 吉林大学化学学院, 长春130023
  • 收稿日期:2004-05-28 出版日期:2005-06-10 发布日期:2005-06-10
  • 通讯作者: 白玉白(1941年出生),男,教授,博士生导师,从事凝聚态物质的光物理与光化学研究.E-mail:yubai@jlu.edu.cn E-mail:yubai@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:60271020);国家“九七三”计划(批准号:G1999064504);国家“八六三”计划(批准号:2002AA302203)资助.

Preparation of CdTe/SiO2 Nanocomplex via Electrostatic Interaction

ZHAO Kui, LI Jun, WANG Lin, PAN Kai, LIU Yan-Mei, BAI Yu-Bai, LI Tie-Jin   

  1. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2004-05-28 Online:2005-06-10 Published:2005-06-10

摘要: 以四乙氧基硅烷(TEOS)为原料,在乙醇相中制备了尺寸为80nmSiO2纳米粒子,用3-氨基丙基三乙氧基硅烷对SiO2纳米粒子进行了氨基化.以巯基乙酸为配体,在水相中合成了CdTe纳米晶.通过静电相互作用,CdTe纳米晶被吸附到氨基化的二氧化硅球的表面上.研究了两种粒子复合后引起的CdTe纳米晶发光光谱的变化.

关键词: CdTe纳米晶, 二氧化硅微球, 静电作用, CdTe/SiO2复合物

Abstract: Monodispersed 80 nm silica spheres were prepared in alcohol solvent by using tetraethyl-orthosilicate as the precursor, and functionalized with 3-aminopropyltriethoxysilane. The CdTe nanocrystals were synthesized in aqueous solution by using thioglycolic acid as the stabilizing agent. Additionally, CdTe nanocrystals were adsorbed on the surface of silica sphere in aqueous solution through electrostatic function. It was found that the CdTe nanocrystals photoluminescent spectra had an obviously shift to long wavelength.

Key words: CdTe nanocrystal, Silica sphere, Electrostatic interaction, CdTe/SiO2 complex

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