Stable Zn-doped CsPbBr3 NCs glasses toward an enhanced optical performance for WLED

被引：38

作者：

Ding, Ling ^{[1
]}

Liu, Shengnan ^{[1
]}

Zhang, Zelong ^{[1
]}

Shao, Guangzhan ^{[1
]}

Xiang, Weidong ^{[1
]}

Liang, Xiaojuan ^{[1
]}

机构：

[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 17期

基金：

中国国家自然科学基金;

关键词：

CsPb1-xZnxBr3; NCs; Glass; Environment friendly; White LED; PEROVSKITE QUANTUM DOTS; CSPBX3; X; NANOCRYSTALS; EFFICIENT; SUBSTITUTION; STABILITY; BR; EMISSION; CI;

D O I：

10.1016/j.ceramint.2019.07.307

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Inorganic perovskite nanocrystals (NCs) doped with metal ions have received much attention due to their superior optoelectronic properties and environment friendly. Here, we synthesized Zn-doped CsPbBr3 perovskite NCs in borosilicate glass by melt-quenching. When ZnBr2 and PbBr2 were in half, the fluorescence intensity was enhanced, and the PLQYs increased from 32 to 36%. Under the excitation of 460 nm blue chip, white LED (WLED) was fabricated by using Zn-doped CsPbBr3 NCs glass and red phosphor powder CaAlSiN3:Eu2+. The experimental results show that the photoelectric parameters of the constructed white LED are considerable, among which the luminous efficacy (LE) is 70.1 lm/W, and a high LE is 72.79. However, pure CsPbBr3 has a low LE value of 26.1 lm/W and a CRI value of 76.9 Zn2+ doped CsPbBr3 can reduce the toxicity of materials and can be used to prepare high-performance optical devices. The study showed a new doped chemical model system for various optoelectronic applications.

引用

页码：22699 / 22706

页数：8

共 43 条

[11] Synthesis and Optical Properties of Lead-Free Cesium Tin Halide Perovskite Nanocrystals [J].

Jellicoe, Tom C. ;

Richter, Johannes M. ;

Glass, Hugh F. J. ;

Tabachnyk, Maxim ;

Brady, Ryan ;

Dutton, Sian E. ;

Rao, Akshay ;

Friend, Richard H. ;

Credgington, Dan ;

Greenham, Neil C. ;

Boehm, Marcus L. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2016, 138 (09) :2941-2944

[12] Ultrastability and color- tunability of CsPb( Br/ I) 3 nanocrystals in P- Si- Zn glass for white LEDs [J].

Jiang, Jutao ;

Shao, Guangzhan ;

Zhang, Zelong ;

Ding, Ling ;

Zhang, Huiling ;

Liu, Jianming ;

Chen, Zhaoping ;

Xiang, Weidong ;

Liang, Xiaojuan .

CHEMICAL COMMUNICATIONS, 2018, 54 (87) :12302-12305

[13] Signatures of Exciton Dynamics and Carrier Trapping in the Time-Resolved Photoluminescence of Colloidal CdSe Nanocrystals [J].

Jones, Marcus ;

Lo, Shun S. ;

Scholes, Gregory D. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (43) :18632-18642

[14] Colloidal CsPbX3 (X = CI, Br, I) Nanocrystals 2.0: Zwitterionic Capping Ligands for Improved Durability and Stability [J].

Krieg, Franziska ;

Ochsenbein, Stefan T. ;

Yakunin, Sergii ;

ten Brinck, Stephanie ;

Aellen, Philipp ;

Suess, Adrian ;

Clerc, Baptiste ;

Guggisberg, Dominic ;

Nazarenko, Olga ;

Shynkarenko, Yevhen ;

Kumar, Sudhir ;

Shih, Chih-Jen ;

Infante, Ivan ;

Kovalenko, Maksym V. .

ACS ENERGY LETTERS, 2018, 3 (03) :641-646

[15] Postsynthetic Surface Trap Removal of CsPbX3 (X = CI, Br, or I) Quantum Dots via a ZnX2/Hexane Solution toward an Enhanced Luminescence Quantum Yield [J].

Li, Fei ;

Liu, Ying ;

Wang, Hongliang ;

Zhan, Qian ;

Liu, Quanlin ;

Xia, Zhiguo .

CHEMISTRY OF MATERIALS, 2018, 30 (23) :8546-8554

[16] High Br- Content CsPb(ClyBr1-y)3 Perovskite Nanocrystals with Strong Mn2+ Emission through Diverse Cation/Anion Exchange Engineering [J].

Li, Fei ;

Xia, Zhiguo ;

Pan, Caofeng ;

Gong, Yue ;

Gu, Lin ;

Liu, Quanlin ;

Zhang, Jin Z. .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (14) :11739-11746

[17] An anion-driven Sn2+ exchange reaction in CsPbBr3 nanocrystals towards tunable and high photoluminescence [J].

Li, Meng ;

Zhang, Xiao ;

Matras-Postolek, Katarzyna ;

Chen, Hsueh-Shih ;

Yang, Ping .

JOURNAL OF MATERIALS CHEMISTRY C, 2018, 6 (20) :5506-5513

[18] Highly Luminescent Phase-Stable CsPbl3 Perovskite Quantum Dots Achieving Near 100% Absolute Photoluminescence Quantum Yield [J].

Liu, Feng ;

Zhang, Yaohong ;

Ding, Chao ;

Kobayashi, Syuusuke ;

Izuishi, Takuya ;

Nakazawa, Naoki ;

Toyoda, Taro ;

Ohta, Tsuyoshi ;

Hayase, Shuzi ;

Minemoto, Takashi ;

Yoshino, Kenji ;

Dai, Songyuan ;

Shen, Qing .

ACS NANO, 2017, 11 (10) :10373-10383

[19] CsPbxMn1-xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio [J].

Liu, Huiwen ;

Wu, Zhennan ;

Shao, Jieren ;

Yao, Dong ;

Gao, Hang ;

Liu, Yi ;

Yu, Weili ;

Zhang, Hao ;

Yang, Bai .

ACS NANO, 2017, 11 (02) :2239-2247

[20] Efficient planar heterojunction perovskite solar cells by vapour deposition [J].

Liu, Mingzhen ;

Johnston, Michael B. ;

Snaith, Henry J. .

NATURE, 2013, 501 (7467) :395-+

← 1 2 3 4 5 →