Luminescence properties of CdTe QDs embedded in Zn5(CO3)2(OH)6 matrix

被引：9

作者：

Wang, Guo-Fang ^{[1
]}

Guan, An-Xiang ^{[1
]}

Zhou, Chun-Yan ^{[1
]}

Xia, Si-Yu ^{[1
]}

Chen, Qian ^{[1
]}

Chen, Xue-Ting ^{[1
]}

Zhou, Li-Ya ^{[1
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2016年 / 27卷 / 12期

关键词：

Quantum dots; Fluorescent powder; Basic zinc carbonate; Hydrothermal; Light-emitting diodes; QUANTUM DOTS; NANOCRYSTALS; PERFORMANCE;

D O I：

10.1016/j.cclet.2016.07.012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CdTe@Zn-5(CO3)(2)(OH)(6) composites were synthesized by a hydrothermal method. CdTe@Zn-5(CO3)(2)(OH)(6) composite nanospheres were characterized via X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and photoluminescence (PL). The hydrothermal, reaction time and the mole ratios of Zn/Te played important roles in the growth and fluorescence intensity of CdTe@Zn-5(CO3)(2)(OH)(6) composites. The composite powders showed peak PL at 578 nm at 1.6 times the intensity of powdered CdTe QDs. CdTe@Zns(CO3)(2)(OH)(6) exhibited a strong yellow fluorescence emission, and its preparation method was easy and economical. Therefore, CdTe@Zn-5(CO3)(2)(OH)(6) offers potential applications in biological markers and light-emitting diodes. (C) 2016 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：1788 / 1792

页数：5

共 10 条

[1] A water-ethanol phase assisted co-precipitation approach toward high quality quantum dot-inorganic salt composites and their application for WLEDs [J].

Chang, Yajing ;

Yao, Xudong ;

Mi, Longfei ;

Li, Guopeng ;

Wang, Shengda ;

Wang, Hui ;

Zhang, Zhongping ;

Jiang, Yang .

GREEN CHEMISTRY, 2015, 17 (08) :4439-4445

[2] Preparation of highly luminescent BaSO4 protected CdTe quantum dots as conversion materials for excellent color-rendering white LEDs [J].

Chang, Yajing ;

Yao, Xudong ;

Zhang, Zhongping ;

Jiang, Danlu ;

Yu, Yalan ;

Mi, Longfei ;

Wang, Hui ;

Li, Guopeng ;

Yu, Dabin ;

Jiang, Yang .

JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (12) :2831-2836

[3] Efficient visible light-induced photocatalytic degradation of methyl orange by QDs sensitized CdS-Bi2WO6 [J].

Ge, Lei ;

Liu, Jing .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 105 (3-4) :289-297

[4] Temperature-Dependent Exciton and Trap-Related Photoluminescence of CdTe Quantum Dots Embedded in a NaCl Matrix: Implication in Thermometry [J].

Kalytchuk, Sergii ;

Zhovtiuk, Olga ;

Kershaw, Stephen V. ;

Zboril, Radek ;

Rogach, Andrey L. .

SMALL, 2016, 12 (04) :466-476

[5] Zn2+ addition: A facile way to obtain CdTe nanocrystals powders with enhanced fluorescence emission [J].

Liu, Xiangming ;

Tian, Jintao ;

Jia, Jinqian .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2014, 451 :85-89

[6]

Rajh T., 1994, CHEMINFORM, V25

[7] Influence of CdSe quantum dot interlayer on the performance of polymer/TiO2 nanorod arrays hybrid solar cell [J].

Wang, Jingyang ;

Zhang, Tianjin ;

Wang, Duofa ;

Pan, Ruikun ;

Wang, Qingqing ;

Xia, Hanming .

CHEMICAL PHYSICS LETTERS, 2012, 541 :105-109

[8] Photocatalytic activity of CdTe quantum Dots encapsulated in zeolite Y [J].

Wang, Rongfang ;

Li, Bin ;

Dong, Lihui ;

Zhang, Feiyue ;

Fan, Minguang ;

Zhou, Liya .

MATERIALS LETTERS, 2014, 135 :99-102

[9] Rapid green manufacture of high yield CdTe@Ca(OH)2 nanocrystals and their performance on WLED [J].

Zhao, Zhixing ;

Wang, Xiao-Qiao ;

Ling, Luting ;

Wang, Cai-Feng ;

Chen, Su .

AICHE JOURNAL, 2016, 62 (02) :580-588

[10] Integrating CdS quantum dots on hollow graphitic carbon nitride nanospheres for hydrogen evolution photocatalysis [J].

Zheng, Dandan ;

Zhang, Guigang ;

Wang, Xinchen .

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2015, 179 :479-488

← 1 →