Facile one-pot synthesis of water-soluble β-cyclodextrin coated CdTe quantum dots

被引：2

作者：

Xue, Mei ^{[1
]}

Wang, Wen ^{[1
]}

机构：

[1] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 166卷

关键词：

CdTe; Semiconductors; beta-cyclodextrin; Water soluble; Luminescence; NANOCRYSTALS; PHOTOLUMINESCENCE; NANOPARTICLES;

D O I：

10.1016/j.matlet.2015.12.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Here, the direct synthesis beta-cyclodextrin (beta-CD) coated water-soluble CdTe quantum dots (QDs) by using a new 'one pot' method is reported. Cd(Ac)(2), NaHTe, oleic acid and beta-CD were used as precursors in the water-oil two phase system. The obtained CdTe QDs were characterized by luminescence spectroscopy, ultraviolet-visible (UV-vis) spectroscopy, fourier transform-infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM) and confocal fluorescence images. The quantum yield(QY) of the water-soluble CdTe QDs were about 27%. Whether over a wide range of pH values or at high ionic strengths, their optical density remained constant. The obtained QDs aqueous solution are very stable under ambient atmosphere conditions. These advantageous properties make the QDs highly desirable for development of a fluorescent probe. In addition, the synthetic strategy can be broadly applied towards other amphiphilic molecule modified II-VI QDs. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：97 / 100

页数：4

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