Optical properties of cadmium sulfide quantum dots in water solutions

被引：12
|
作者：
Rempel', S. V. [1 ,2 ]
Levin, A. D. [3 ]
Sadagov, A. Yu [3 ]
Rempel', A. A. [1 ,2 ]
机构：
[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia
[2] Ural Fed Univ, Ekaterinburg 620002, Russia
[3] All Russia Res Inst Opt & Phys Measurements, Moscow 119361, Russia
来源：
PHYSICS OF THE SOLID STATE | 2015年 / 57卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
FLUORESCENCE;
D O I：
10.1134/S106378341506027X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The optical properties of colloidal solutions of quantum dots based on cadmium sulfide semiconductor nanoparticles with different concentrations of the initial components have been studied. The absorption and fluorescence spectra are strongly affected by the presence of local energy states formed by crystal-lattice defects in the band gap. The dependence of the intensity of short-wavelength emission peaks on the excitation energy has been observed. The concentration quenching of fluorescence in the range of 430-490 nm has been found.
引用
收藏
页码：1103 / 1107
页数：5
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