A novel method for PbS quantum dot synthesis

被引：30

作者：

Jiao, Yuechao ^{[1
]}

Gao, Xiaoyong ^{[1
]}

Lu, Jingxiao ^{[1
]}

Chen, Yongsheng ^{[1
]}

Zhou, Jianpeng ^{[1
]}

Li, Xinli ^{[1
]}

机构：

[1] Zhengzhou Univ, Minist Educ, Key Lab Mat Phys, Zhengzhou 450052, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 72卷

基金：

中国国家自然科学基金;

关键词：

PbS QD; Crystal growth; Crystal structure; Ethylene diamine tetraacetic acid; SIZE; NANOCRYSTALS; LUMINESCENCE; MORPHOLOGY; PHOSPHORS; NANORODS; FILMS;

D O I：

10.1016/j.matlet.2011.12.068

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

A novel way to synthesize cubic PbS quantum dots (QDs) with average sizes of about 3 nm to 5 nm is presented in the current research. A mixture of sodium dodecyl sulfate (SDS) and cetyltrimethyl ammonium bromide (CTAB) was used as stabilizing agent and ethylene diamine tetraacetic acid (EDTA) was used as dispersant in the chemical bath synthesis method. The role EDTA that plays in the fabrication of PbS QDs was also analyzed. PbS QDs could not be synthesized without EDTA even with the use of stabilizing agents SDS and CTAB. EDTA facilitates the formation of stable complex compounds with Pb2+ metal ions and prohibits the aggregation of PbS QDs. (C) 2011 Published by Elsevier B.V.

引用

页码：116 / 118

页数：3

共 20 条

[1]

Semiconductor clusters, nanocrystals, and quantum dots [J].