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题名

All-Inorganic Perovskite Nanocrystals for High-Efficiency Light Emitting Diodes: Dual-Phase CsPbBr3-CsPb2Br5 Composites

作者
通讯作者Wang, Kai; Sun, Xiao Wei
发表日期
2016-07-05
DOI
发表期刊
ISSN
1616-301X
EISSN
1616-3028
卷号26期号:25页码:4595-4600
摘要

A dual-phase all-inorganic composite CsPbBr3-CsPb2Br5 is developed and applied as the emitting layer in LEDs, which exhibited a maximum luminance of 3853 cd m(-2), with current density (CE) of approximate to 8.98 cd A(-1) and external quantum efficiency (EQE) of approximate to 2.21%, respectively. The parasite of secondary phase CsPb2Br5 nanoparticles on the cubic CsPbBr3 nanocrystals could enhance the current efficiency by reducing diffusion length of excitons on one side, and decrease the trap density in the band gap on the other side. In addition, the introduction of CsPb2Br5 nanoparticles could increase the ionic conductivity by reducing the barrier against the electronic and ionic transport, and improve emission lifetime by decreasing nonradiative energy transfer to the trap states via controlling the trap density. The dual-phase all-inorganic CsPbBr3-CsPb2Br5 composite nanocrystals present a new route of perovskite material for advanced light emission applications.

关键词
相关链接[来源记录]
收录类别
SCI ; EI
语种
英语
重要成果
NI期刊 ; NI论文 ; ESI高被引
学校署名
第一 ; 通讯
资助项目
Shenzhen Innovation Project[KC2014JSQN0011A] ; Shenzhen Innovation Project[JCYJ20150630145302223]
WOS研究方向
Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目
Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号
WOS:000379905800019
出版者
EI入藏号
20162402481240
EI主题词
Bromine Compounds ; Efficiency ; Energy Gap ; Energy Transfer ; Lead Compounds ; Light Emitting Diodes ; Nanocrystals ; Nanoparticles ; Perovskite
EI分类号
Minerals:482.2 ; Semiconductor Devices And Integrated Circuits:714.2 ; Nanotechnology:761 ; Production Engineering:913.1 ; Solid State Physics:933
ESI学科分类
MATERIALS SCIENCE
来源库
Web of Science
引用统计
被引频次[WOS]:433
成果类型期刊论文
条目标识符http://kc.sustech.edu.cn/handle/2SGJ60CL/29560
专题工学院_电子与电气工程系
作者单位
1.South Univ Sci & Technol China, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China
3.Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore
4.Uppsala Univ, Angstrom Lab, Dept Chem, Phys Chem,Ctr Mol Devices, SE-75120 Uppsala, Sweden
第一作者单位电子与电气工程系
通讯作者单位电子与电气工程系
第一作者的第一单位电子与电气工程系
推荐引用方式
GB/T 7714
Zhang, Xiaoli,Xu, Bing,Zhang, Jinbao,et al. All-Inorganic Perovskite Nanocrystals for High-Efficiency Light Emitting Diodes: Dual-Phase CsPbBr3-CsPb2Br5 Composites[J]. ADVANCED FUNCTIONAL MATERIALS,2016,26(25):4595-4600.
APA
Zhang, Xiaoli.,Xu, Bing.,Zhang, Jinbao.,Gao, Yuan.,Zheng, Yuanjin.,...&Sun, Xiao Wei.(2016).All-Inorganic Perovskite Nanocrystals for High-Efficiency Light Emitting Diodes: Dual-Phase CsPbBr3-CsPb2Br5 Composites.ADVANCED FUNCTIONAL MATERIALS,26(25),4595-4600.
MLA
Zhang, Xiaoli,et al."All-Inorganic Perovskite Nanocrystals for High-Efficiency Light Emitting Diodes: Dual-Phase CsPbBr3-CsPb2Br5 Composites".ADVANCED FUNCTIONAL MATERIALS 26.25(2016):4595-4600.
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adfm.201600958.pdf(1538KB)----限制开放--
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