ShanghaiTech University Knowledge Management System
Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure | |
2019-08 | |
Source Publication | SCIENCE ADVANCES
![]() |
ISSN | 2375-2548 |
Volume | 5Issue:8 |
Status | 已发表 |
DOI | 10.1126/sciadv.aaw8072 |
Abstract | Organic-inorganic hybrid halide perovskites are emerging as promising materials for next-generation light-emitting diodes (LEDs). However, the poor stability of these materials has been the main obstacle challenging their application. Here, we performed first-principles calculations, revealing that the molecule dissociation energy of Dion-Jacobson (DJ) structure using 1,4-bis(aminomethyl)benzene molecules as bridging ligands is two times higher than the typical Ruddlesden-Popper (RP) structure based on phenylethylammonium ligands. Accordingly, LEDs based on the DJ structure show a half-lifetime over 100 hours, which is almost two orders of magnitude longer compared with those based on RP structural quasi-two-dimensional perovskite. To the best of our knowledge, this is the longest lifetime reported for all organic-inorganic hybrid perovskites operating at the current density, giving the highest external quantum efficiency (EQE) value. In situ tracking of the film composition in operation indicates that the DJ structure was maintained well after continuous operation under an electric field. |
Indexed By | SCI ; SCIE ; EI |
Language | 英语 |
Funding Project | National Natural Science Foundation of China[U1632118] ; National Natural Science Foundation of China[21571129] |
WOS Research Area | Science & Technology - Other Topics |
WOS Subject | Multidisciplinary Sciences |
WOS ID | WOS:000481798400038 |
Publisher | AMER ASSOC ADVANCEMENT SCIENCE |
EI Keywords | Calculations ; Electric fields ; Ligands ; Molecules ; Perovskite |
WOS Keyword | TOTAL-ENERGY CALCULATIONS ; HIGH-EFFICIENCY ; QUANTUM DOTS ; ELECTROLUMINESCENCE ; DEGRADATION |
Original Document Type | Article |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/64562 |
Collection | 物质科学与技术学院_硕士生 物质科学与技术学院_PI研究组_柯友启组 物质科学与技术学院_PI研究组_宁志军组 物质科学与技术学院_PI研究组_刘伟民组 物质科学与技术学院_本科生 物质科学与技术学院_博士生 |
Co-First Author | Liao, Yuan; Wei, Qi |
Corresponding Author | Liu, Weimin; Ning, Zhijun |
Affiliation | 1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
First Author Affilication | School of Physical Science and Technology |
Corresponding Author Affilication | School of Physical Science and Technology |
First Signature Affilication | School of Physical Science and Technology |
Recommended Citation GB/T 7714 | Shang, Yuequn,Liao, Yuan,Wei, Qi,et al. Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure[J]. SCIENCE ADVANCES,2019,5(8). |
APA | Shang, Yuequn.,Liao, Yuan.,Wei, Qi.,Wang, Ziyu.,Xiang, Bo.,...&Ning, Zhijun.(2019).Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure.SCIENCE ADVANCES,5(8). |
MLA | Shang, Yuequn,et al."Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure".SCIENCE ADVANCES 5.8(2019). |
Files in This Item: | Download All | |||||
File Name/Size | DocType | Version | Access | License |
Edit Comment
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.