Preparation of CdTe/SiO2 Nanocomplex via Electrostatic Interaction

Abstract

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

CLC Number:

O664

TrendMD:

ZHAO Kui, LI Jun, WANG Lin, PAN Kai, LIU Yan-Mei, BAI Yu-Bai, LI Tie-Jin. Preparation of CdTe/SiO₂ Nanocomplex via Electrostatic Interaction[J]. Chem. J. Chinese Universities, 2005, 26(6): 1106.

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Preparation of CdTe/SiO₂ Nanocomplex via Electrostatic Interaction

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