Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure
2019-08
Source PublicationSCIENCE ADVANCES
ISSN2375-2548
Volume5Issue:8
Status已发表
DOI10.1126/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 BySCI ; SCIE ; EI
Language英语
Funding ProjectNational Natural Science Foundation of China[U1632118] ; National Natural Science Foundation of China[21571129]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000481798400038
PublisherAMER ASSOC ADVANCEMENT SCIENCE
EI KeywordsCalculations ; Electric fields ; Ligands ; Molecules ; Perovskite
WOS KeywordTOTAL-ENERGY CALCULATIONS ; HIGH-EFFICIENCY ; QUANTUM DOTS ; ELECTROLUMINESCENCE ; DEGRADATION
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://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 AuthorLiao, Yuan; Wei, Qi
Corresponding AuthorLiu, 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 AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
First Signature AffilicationSchool 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
Related Services
Usage statistics
Scholar Google
Similar articles in Scholar Google
[Shang, Yuequn]'s Articles
[Liao, Yuan]'s Articles
[Wei, Qi]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shang, Yuequn]'s Articles
[Liao, Yuan]'s Articles
[Wei, Qi]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shang, Yuequn]'s Articles
[Liao, Yuan]'s Articles
[Wei, Qi]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 10.1126@sciadv.aaw8072.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.