Search: onr:"swepub:oai:DiVA.org:liu-180004" >
Color-Stable Blue L...
Color-Stable Blue Light-Emitting Diodes Enabled by Effective Passivation of Mixed Halide Perovskites
-
- Yu, Hongling (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Wang, Heyong (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Zhang, Tiankai (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
show more...
-
- Yi, Chang (author)
- Nanjing Tech Univ, Peoples R China; Nanjing Tech Univ, Peoples R China
-
- Zheng, Guanhaojie (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
-
- Yin, Chunyang (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Karlsson, Max (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Qin, Jiajun (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Wang, Jianpu (author)
- Nanjing Tech Univ, Peoples R China; Nanjing Tech Univ, Peoples R China
-
- Liu, Xiaoke (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Gao, Feng (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
show less...
-
(creator_code:org_t)
- 2021-06-24
- 2021
- English.
-
In: The Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185. ; 12:26, s. 6041-6047
- Related links:
-
https://liu.diva-por... (primary) (Raw object)
-
show more...
-
https://pubs.acs.org...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Bandgap tuning through mixing halide anions is one of the most attractive features for metal halide perovskites. However, mixed halide perovskites usually suffer from phase segregation under electrical biases. Herein, we obtain high-performance and color-stable blue perovskite LEDs (PeLEDs) based on mixed bromide/ chloride three-dimensional (3D) structures. We demonstrate that the color instability of CsPb(Br1-xClx)(3) PeLEDs results from surface defects at perovskite grain boundaries. By effective defect passivation, we achieve color-stable blue electroluminescence from CsPb(Br1-xClx)(3) PeLEDs, with maximum external quantum efficiencies of up to 4.5% and high luminance of up to 5351 cd m(-2) in the sky-blue region (489 nm). Our work provides new insights into the color instability issue of mixed halide perovskites and can spur new development of high-performance and color-stable blue PeLEDs.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Yu, Hongling
-
Wang, Heyong
-
Zhang, Tiankai
-
Yi, Chang
-
Zheng, Guanhaoji ...
-
Yin, Chunyang
-
show more...
-
Karlsson, Max
-
Qin, Jiajun
-
Wang, Jianpu
-
Liu, Xiaoke
-
Gao, Feng
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Materials Chemis ...
- Articles in the publication
-
The Journal of P ...
- By the university
-
Linköping University