White light emission from quantum well structured quantum dots

被引：6

作者：

Qian, Lei ^{[1
]}

Yang, Yixing ^{[1
]}

Han, Changfeng ^{[1
]}

Cheng, Yuanyuan ^{[1
]}

Chen, Ling ^{[1
]}

Zhang, Ting ^{[2
]}

Xue, Wei ^{[2
]}

机构：

[1] Henan Univ, Key Lab Special Funct Mat, Minist Educ, Kaifeng 475004, Peoples R China

[2] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2015年 / 193卷

关键词：

Nanoparticle; Luminescence; Optical materials and properties; ELECTROLUMINESCENCE; NANOCRYSTALS; DEVICES; COMPOSITES; POLYMER;

D O I：

10.1016/j.mseb.2014.10.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Four-layer quantum well quantum dots (QWQDs) with structure of CdS/ZnS/CdS/ZnS were synthesized using a reverse micelle process. White light emission can be achieved by this type of QWQD, as the blue and green/orange emission components were originated from CdS core and ZnS inner shell, respectively. The emission spectra of QWQDs can be adjusted by varying the water-to-surfactant ratios in the reverse micelle process which controls the particle size and core/shell nanostructure of QWQDs. Efficient luminescence with PL quantum yield up to 30% can be achieved, due to the effective suppression of non-radiative relaxations from the Auger recombination with the quantum well structure. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1 / 3

页数：3

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