Cu掺杂ZnSe高效量子点的合成及其光学特性研究
收稿日期: 2012-03-22
修回日期: 2012-06-01
网络出版日期: 2013-01-23
基金资助
国家自然科学基金(61106066);浙江省杰出青年基金(R4100242);宁波市自然科学基金(2011A610094) National Natural Science Foundation of China (61106066);Zhejiang Provincial Science Foundation for Distinguished Young Scholars (R4100242);Ningbo Municipal Natural Science Foundation of China (2011A610094)
Synthesis of Effective and Qualified Cu-doped ZnSe Quantum Dots and Their Optical Properties
Received date: 2012-03-22
Revised date: 2012-06-01
Online published: 2013-01-23
郑金桔 , 曹盛 , 高凤梅 , 尉国栋 , 贾龙 , 杨为佑 . Cu掺杂ZnSe高效量子点的合成及其光学特性研究[J]. 无机材料学报, 2013 , 28(2) : 159 -164 . DOI: 10.3724/SP.J.1077.2013.12184
Effective Cu-doped ZnSe quantum dots (ZnSe:Cu d-dots) with high qualities were synthesized by a growth-doping strategy. The effect of the ratios of Zn to Se precursor within the raw materials on the quality of the ZnSe cores and ZnSe:Cu d-dots was studied. The photoluminescence (PL) properties of ZnSe:Cu d-dots in Cu doping process were investigated systematically. The results suggested that the optical performance and stability of the d-dots could be remarkably improved by further coated with a homogeneous ZnSe shell on the fabricated surface-doped ZnSe:Cu d-dots. In addition, the obtained ZnSe:Cu d-dots could be changed to be water-soluble by ligand exchange. It implied that these novel d-dots could be a promising candidate to substitute for the conventional quantum dots containing Cd elements, suggesting their potentially environment-friendly applications in the fields of solid state lighting and diagnostics.
Key words： ZnSe; quantum dots; growth-doping strategy; photoluminescence
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