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A Multifunctional S...
A Multifunctional Small-Molecule Hole- Transporting Material Enables Perovskite QLEDs with EQE Exceeding 20%
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- Li, Xiansheng (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Haghshenas, Mahdi (author)
- Univ Isfahan, Iran
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- Wang, Linqin (author)
- Westlake Univ, Peoples R China
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- Huang, Jing (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Sheibani, Esmaeil (author)
- Univ Isfahan, Iran
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- Yuan, Shichen (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Luo, Xin (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Chen, Xuehan (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Wei, Changting (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Xiang, Hengyang (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Baryshnikov, Glib (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Sun, Licheng (author)
- Westlake Univ, Peoples R China
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- Zeng, Haibo (author)
- Nanjing Univ Sci & Technol, Peoples R China
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- Xu, Bo (author)
- Nanjing Univ Sci & Technol, Peoples R China
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(creator_code:org_t)
- 2023-02-16
- 2023
- English.
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In: ACS Energy Letters. - : AMER CHEMICAL SOC. - 2380-8195. ; 8:3, s. 1445-1454
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Hole-transporting materials (HTMs) play critical roles in the device performance and stability of perovskite quantum dot light-emitting diodes (Pe-QLEDs). However, the development of small-molecule HTMs for achieving high-performance Pe-QLEDs has proven to be very challenging because of their low hole mobility and poor solvent resistance. Herein, we tailor-made a multifunc-tional small-molecule HTM, termed X10, with methoxy as the substituents, for application in Pe-QLEDs. X10 features high hole mobility, good film-forming ability, and strong solvent resistance ability as well as defect passivation effect. Subsequently, Pe-QLEDs employing X10 as HTM presented a promising external quantum efficiency (EQE) of 20.18%, which is 7-fold higher than that of the reference HTM-TCTA-based ones (EQE approximate to 2.88%). To the best of our knowledge, this is the first case in which a small-molecule HTM displays a high EQE over 20% in Pe-QLEDs. Our work provides important guidance for the rational design of multifunctional small-molecule HTMs for high-performance Pe-QLEDs.
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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- By the author/editor
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Li, Xiansheng
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Haghshenas, Mahd ...
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Wang, Linqin
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Huang, Jing
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Sheibani, Esmaei ...
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Yuan, Shichen
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show more...
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Luo, Xin
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Chen, Xuehan
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Wei, Changting
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Xiang, Hengyang
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Baryshnikov, Gli ...
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Sun, Licheng
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Zeng, Haibo
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Xu, Bo
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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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ACS Energy Lette ...
- By the university
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Linköping University