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高等学校化学研究 ›› 2016, Vol. 32 ›› Issue (1): 16-19.doi: 10.1007/s40242-015-5279-8

• Articles • 上一篇    下一篇

Microwave-assisted Synthesis of CdTe Quantum Dots Using 3-Mercaptopropionic Acid as Both a Reducing Agent and a Stabilizer

HUANG Yantao, LAN Yuwei, YI Qilei, HUANG Hualin, WANG Yilin, LU Jianping   

  1. Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
  • 收稿日期:2015-07-17 修回日期:2015-10-08 出版日期:2016-02-01 发布日期:2015-11-02
  • 通讯作者: WANG Yilin E-mail:theanalyst@163.com
  • 基金资助:

    Supported by the Dean Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, China(No.2013K05), the Scientific Research Foundation of Guangxi University, China(No.XBZ120723) and the Foundation of College Student Experimental Skills and Innovation Ability Training of Guangxi University, China (No.SYJN20130311).

Microwave-assisted Synthesis of CdTe Quantum Dots Using 3-Mercaptopropionic Acid as Both a Reducing Agent and a Stabilizer

HUANG Yantao, LAN Yuwei, YI Qilei, HUANG Hualin, WANG Yilin, LU Jianping   

  1. Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
  • Received:2015-07-17 Revised:2015-10-08 Online:2016-02-01 Published:2015-11-02
  • Contact: WANG Yilin E-mail:theanalyst@163.com
  • Supported by:

    Supported by the Dean Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, China(No.2013K05), the Scientific Research Foundation of Guangxi University, China(No.XBZ120723) and the Foundation of College Student Experimental Skills and Innovation Ability Training of Guangxi University, China (No.SYJN20130311).

摘要:

In this paper, a facile synthetic approach to prepare CdTe quantum dots(QDs) with high luminescence via a one-pot microwave irradiation reaction route using 3-mercaptopropionic acid(MPA) as both a sodium tellurite reducer and a capping molecule was described, and the mechanism of the formation of CdTe QDs was elucidated. In this approach, CdTe QDs with six different emission wavelengths of 553, 567, 577, 595, 608 and 615 nm were obtained via changing the refluxing time and the quantum yields(QY) of these QDs were 40.6%, 55.3%, 63.6%, 43.4%, 37.4% and 29.7%, respectively. The characterization results of X-ray powder diffraction(XRD) and transmission electron microscopy(TEM) indicate that the obtained QDs have a pure cubic zinc blended structure with a spherical shape. No toxic gases were released during the preparation process, indicating that the method is relatively fast, cheap and environmentally friendly.

关键词: Cadmium telluride, Quantum dot, Photoluminescence

Abstract:

In this paper, a facile synthetic approach to prepare CdTe quantum dots(QDs) with high luminescence via a one-pot microwave irradiation reaction route using 3-mercaptopropionic acid(MPA) as both a sodium tellurite reducer and a capping molecule was described, and the mechanism of the formation of CdTe QDs was elucidated. In this approach, CdTe QDs with six different emission wavelengths of 553, 567, 577, 595, 608 and 615 nm were obtained via changing the refluxing time and the quantum yields(QY) of these QDs were 40.6%, 55.3%, 63.6%, 43.4%, 37.4% and 29.7%, respectively. The characterization results of X-ray powder diffraction(XRD) and transmission electron microscopy(TEM) indicate that the obtained QDs have a pure cubic zinc blended structure with a spherical shape. No toxic gases were released during the preparation process, indicating that the method is relatively fast, cheap and environmentally friendly.

Key words: Cadmium telluride, Quantum dot, Photoluminescence