Search: onr:"swepub:oai:DiVA.org:liu-150261" >
Boosting Perovskite...
Boosting Perovskite Light-Emitting Diode Performance via Tailoring Interfacial Contact
-
- Zou, Yatao (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Ban, Muyang (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Yang, Yingguo (author)
- Chinese Acad Sci, Peoples R China
-
show more...
-
- Bai, Sai (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
-
- Wu, Chen (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Han, Yujie (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Wu, Tian (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Tan, Yeshu (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Huang, Qi (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Gao, Xingyu (author)
- Chinese Acad Sci, Peoples R China
-
- Song, Tao (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Zhang, Qiao (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
- Sun, Baoquan (author)
- Soochow Univ, Peoples R China; Soochow Univ, Peoples R China
-
show less...
-
(creator_code:org_t)
- 2018-06-21
- 2018
- English.
-
In: ACS Applied Materials and Interfaces. - : AMER CHEMICAL SOC. - 1944-8244 .- 1944-8252. ; 10:28, s. 24320-24326
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Solution-processed perovskite light-emitting diodes (LEDs) have attracted wide attention in the past several years. However, the overall efficiency and stability of perovskite-based LEDs remain inferior to those of organic or quantum dot LEDs. Nonradiative charge recombination and the unbalanced charge injection are two critical factors that limit the device efficiency and operational stability of perovskite LEDs. Here, we develop a strategy to modify the interface between the hole transport layer and the perovskite emissive layer with an amphiphilic conjugated polymer of poly[(9,9-bis(3-(N,N-dimethylamino)propy1)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN). We show evidences that PFN improves the quality of the perovskite film, which effectively suppresses nonradiative recombination. By further improving the charge injection balance rate, a green perovskite LED with a champion current efficiency of 45.2 cd/A, corresponding to an external quantum efficiency of 14.4%, is achieved. In addition, the device based on the PFN layer exhibits improved operational lifetime. Our work paves a facile way for the development of efficient and stable perovskite LEDs.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- perovskite; light-emitting diodes; charge carrier injection; high efficiency; stability
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Zou, Yatao
-
Ban, Muyang
-
Yang, Yingguo
-
Bai, Sai
-
Wu, Chen
-
Han, Yujie
-
show more...
-
Wu, Tian
-
Tan, Yeshu
-
Huang, Qi
-
Gao, Xingyu
-
Song, Tao
-
Zhang, Qiao
-
Sun, Baoquan
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
- Articles in the publication
-
ACS Applied Mate ...
- By the university
-
Linköping University