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Stable and bright f...
Stable and bright formamidinium-based perovskite light-emitting diodes with high energy conversion efficiency
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- Miao, Yanfeng (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Ke, You (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Wang, Nana (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Zou, Wei (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Xu, Mengmeng (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Cao, Yu (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Sun, Yan (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Yang, Rong (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Wang, Ying (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Tong, Yunfang (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Xu, Wenjie (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Zhang, Liangdong (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Li, Renzhi (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Li, Jing (author)
- Zhejiang Univ, Peoples R China
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- He, Haiping (author)
- Zhejiang Univ, Peoples R China
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- Jin, Yizheng (author)
- Zhejiang Univ, Peoples R China
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- Gao, Feng (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Huang, Wei (author)
- Nanjing Tech Univ NanjingTech, Peoples R China; Nanjing Univ Posts and Telecommun, Peoples R China; Nanjing Univ Posts and Telecommun, Peoples R China; Northwestern Polytech Univ, Peoples R China
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- Wang, Jianpu (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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(creator_code:org_t)
- 2019-08-09
- 2019
- English.
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In: Nature Communications. - : NATURE PUBLISHING GROUP. - 2041-1723. ; 10
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https://www.nature.c...
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Abstract
Subject headings
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- Solution-processable perovskites show highly emissive and good charge transport, making them attractive for low-cost light-emitting diodes (LEDs) with high energy conversion efficiencies. Despite recent advances in device efficiency, the stability of perovskite LEDs is still a major obstacle. Here, we demonstrate stable and bright perovskite LEDs with high energy conversion efficiencies by optimizing formamidinium lead iodide films. Our LEDs show an energy conversion efficiency of 10.7%, and an external quantum efficiency of 14.2% without outcoupling enhancement through controlling the concentration of the precursor solutions. The device shows low efficiency droop, i.e. 8.3% energy conversion efficiency and 14.0% external quantum efficiency at a current density of 300 mA cm(-2), making the device more efficient than state-of-the-art organic and quantum-dot LEDs at high current densities. Furthermore, the half-lifetime of device with benzylamine treatment is 23.7 hr under a current density of 100 mA cm(-2), comparable to the lifetime of near-infrared organic LEDs.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Miao, Yanfeng
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Ke, You
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Wang, Nana
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Zou, Wei
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Xu, Mengmeng
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Cao, Yu
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show more...
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Sun, Yan
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Yang, Rong
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Wang, Ying
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Tong, Yunfang
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Xu, Wenjie
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Zhang, Liangdong
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Li, Renzhi
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Li, Jing
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He, Haiping
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Jin, Yizheng
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Gao, Feng
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Huang, Wei
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Wang, Jianpu
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Nature Communica ...
- By the university
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Linköping University