One-Step Preparation of Long-Term Stable and Flexible CsPbBr3 Perovskite Quantum Dots/Ethylene Vinyl Acetate Copolymer Composite Films for White Light-Emitting Diodes

被引：171

作者：

Li, Yang ^{[1
]}

Lv, Ying ^{[2
]}

Guo, Ziquan ^{[3
]}

Dong, Liubing ^{[4
]}

Zheng, Jianghui ^{[5
]}

Chai, Chufen ^{[6
]}

Chen, Nan ^{[3
]}

Lu, Yijun

Chen, Chao ^{[1
]}

机构：

[1] Xiamen Univ, Coll Energy, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Coll Mat, Xiamen 361005, Peoples R China

[3] Xiamen Univ, Dept Elect Sci, Xiamen 361005, Peoples R China

[4] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China

[5] Univ New South Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia

[6] Hualian Elect Corp Ltd, Xiamen 361008, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 18期

关键词：

CsPbBr3 perovskite quantum dots; long-term stable; flexible film; green emission; white LEDs; WIDE COLOR GAMUT; OPTICAL-PROPERTIES; DOTS; NANOCRYSTALS; EFFICIENT; CSPBX3; LEDS; PHOTOLUMINESCENCE; ENCAPSULATION; ELECTRODES;

D O I：

10.1021/acsami.8b02857

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

CsPbBr3 perovskite quantum dots (PQDs)/ ethylene vinyl acetate (EVA) composite films were prepared via a one-step method; on the basis of this, both supersaturated recrystallization of CsPbBr3 PQDs and dissolution of EVA were realized in toluene. The prepared films display outstanding green-emitting performance with high color purity of 92% and photoluminescence (PL) quantum yield of 40.5% at appropriate CsPbBr3 PQD loading. They possess long-term stable luminescent properties in the air and in water, benefiting from the effective protection of CsPbBr3 PQDs by the EVA matrix. Besides, the prepared CsPbBr3 PQDs/EVA films are flexible enough to be repeatedly bent for 1000 cycles while keeping unchanged the PL intensity. The optical properties of the CsPbBr3 PQDs/EVA films in white light-emitting diodes were also studied by experiments and theoretical simulation. Overall, facile preparation process, good long-term stability, and high flexibility allow our green-emitting CsPbBr3 PQDs/EVA films to be applied in lighting applications and flexible displays.

引用

页码：15888 / 15894

页数：7

共 37 条

[1] Precipitation and Optical Properties of CsPbBr3 Quantum Dots in Phosphate Glasses [J].

Ai, Bing ;

Liu, Chao ;

Wang, Jing ;

Xie, Jun ;

Han, Jianjun ;

Zhao, Xiujian .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2016, 99 (09) :2875-2877

[2] Tunable photoluminescence of CsPbBr3 perovskite quantum dots for light emitting diodes application [J].

Chen, Weiwei ;

Xin, Xing ;

Zang, Zhigang ;

Tang, Xiaosheng ;

Li, Cunlong ;

Hu, Wei ;

Zhou, Miao ;

Du, Juan .

JOURNAL OF SOLID STATE CHEMISTRY, 2017, 255 :115-120

[3] Enhanced Stability and Tunable Photoluminescence in Perovskite CsPbX3/ZnS Quantum Dot Heterostructure [J].

Chen, Weiwei ;

Hao, Jiongyue ;

Hu, Wei ;

Zang, Zhigang ;

Tang, Xiaosheng ;

Fang, Liang ;

Niu, Tianchao ;

Zhou, Miao .

SMALL, 2017, 13 (21)

[4] Roll-to-Roll Encapsulation of Metal Nanowires between Graphene and Plastic Substrate for High-Performance Flexible Transparent Electrodes [J].

Deng, Bing ;

Hsu, Po-Chun ;

Chen, Guanchu ;

Chandrashekar, B. N. ;

Liao, Lei ;

Ayitimuda, Zhawulie ;

Wu, Jinxiong ;

Guo, Yunfan ;

Lin, Li ;

Zhou, Yu ;

Aisijiang, Mahaya ;

Xie, Qin ;

Cui, Yi ;

Liu, Zhongfan ;

Peng, Hailin .

NANO LETTERS, 2015, 15 (06) :4206-4213

[5] Use of long-term stable CsPbBr3 perovskite quantum dots in phospho-silicate glass for highly efficient white LEDs [J].

Di, Xiaoxuan ;

Hu, Zemin ;

Jiang, Jutao ;

He, Meiling ;

Zhou, Lei ;

Xiang, Weidong ;

Liang, Xiaojuan .

CHEMICAL COMMUNICATIONS, 2017, 53 (80) :11068-11071

[6] Flexible electrodes and supercapacitors for wearable energy storage: a review by category [J].

Dong, Liubing ;

Xu, Chengjun ;

Li, Yang ;

Huang, Zheng-Hong ;

Kang, Feiyu ;

Yang, Quan-Hong ;

Zhao, Xin .

JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (13) :4659-4685

[7] High-quality CsPbBr3 perovskite nanocrystals for quantum dot light-emitting diodes [J].

Du, Xiafang ;

Wu, Guan ;

Cheng, Jian ;

Dang, Hui ;

Ma, Kangzhe ;

Zhang, Ya-Wen ;

Tan, Peng-Feng ;

Chen, Su .

RSC ADVANCES, 2017, 7 (17) :10391-10396

[8] Optimization Studies of Two-Phosphor-Coated White Light-Emitting Diodes [J].

Guo, Ziquan ;

Shih, Tienmo ;

Gao, Yulin ;

Lu, Yijun ;

Zhu, Lihong ;

Chen, Guolong ;

Lin, Yue ;

Zhang, Jihong ;

Chen, Zhong .

IEEE PHOTONICS JOURNAL, 2013, 5 (02)

[9] Superior Optical Properties of Perovskite Nanocrystals as Single Photon Emitters [J].

Hu, Fengrui ;

Zhang, Huichao ;

Sun, Chun ;

Yin, Chunyang ;

Lv, Bihu ;

Zhang, Chunfeng ;

Yu, William W. ;

Wang, Xiaoyong ;

Zhang, Yu ;

Xiao, Min .

ACS NANO, 2015, 9 (12) :12410-12416

[10] An investigation into the decomposition and burning behaviour of Ethylene-vinyl acetate copolymer nanocomposite materials [J].

Hull, TR ;

Price, D ;

Liu, Y ;

Wills, CL ;

Brady, J .

POLYMER DEGRADATION AND STABILITY, 2003, 82 (02) :365-371

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