Open Access Nano Express

Luminescent properties of CdTe quantum dots synthesized using 3-mercaptopropionic acid reduction of tellurium dioxide directly

Mao Shen1*, Wenping Jia1, Yujing You1, Yan Hu2, Fang Li13, Shidong Tian3, Jian Li3, Yanxian Jin1 and Deman Han1

Author Affiliations

1 College of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, People's Republic of China

2 Department of Dyeing and Chemistry, Chengdu Textile College, Chengdu 611731, People's Republic of China

3 State Key Laboratory of Chemical Resources Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China

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Nanoscale Research Letters 2013, 8:253  doi:10.1186/1556-276X-8-253

Published: 29 May 2013

Abstract

A facile one-step synthesis of CdTe quantum dots (QDs) in aqueous solution by atmospheric microwave reactor has been developed using 3-mercaptopropionic acid reduction of TeO2 directly. The obtained CdTe QDs were characterized by ultraviolet–visible spectroscopy, fluorescent spectroscopy, X-ray powder diffraction, multifunctional imaging electron spectrometer (XPS), and high-resolution transmission electron microscopy. Green- to red-emitting CdTe QDs with a maximum photoluminescence quantum yield of 56.68% were obtained.

Keywords:
CdTe quantum dots; 3-mercaptopropionic acid; TeO2; Microwave irradiation; Photoluminescence