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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202302059
|2 doi
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|a pubmed25n1193.xml
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|a (DE-627)NLM358205360
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|a (NLM)37318939
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|a DE-627
|b ger
|c DE-627
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|a eng
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| 100 |
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|a Zhang, Lingjiao
|e verfasserin
|4 aut
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|a Manipulation of Charge Dynamics for Efficient and Bright Blue Perovskite Light-Emitting Diodes with Chiral Ligands
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 21.09.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Perovskite light-emitting diodes (PeLEDs) emerge as a promising class of optoelectronic devices for next-generation displays and lighting technology. However, the performance of blue PeLEDs lags far behind that of their green and red counterparts, including the unachieved trade-off between high efficiency and high luminance, severe efficiency roll-off, and unsatisfactory power efficiency. Here, a multi-functional chiral ligand of L-phenylalanine methyl ester hydrochloride is strategically introduced into quasi-2D perovskites, which can effectively passivate defects, modulate the phase distribution, improve photoluminescence quantum yield, guarantee high-quality film morphology, and enhance charge transport. Furthermore, ladder-like hole transport layers are established, boosting charge injection and balance. The resultant sky-blue PeLEDs (the photoluminescence peak is 493 nm and the electroluminescence peak is 497 nm) exhibit an external quantum efficiency of 12.43% at 1000 cd m-2 and a record power efficiency of 18.42 lm W-1 , rendering that the performance is among the best blue PeLEDs
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|a Journal Article
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|a blue emission
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|a displays
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|a high efficiency
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|a light-emitting diodes
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4 |
|a perovskites
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1 |
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|a Hu, Sujuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Min
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ren, Yunfei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wei, Linfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Wenxuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Faxu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Zhiyong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Zhenyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Chuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Baiquan
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 38 vom: 27. Sept., Seite e2302059
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:35
|g year:2023
|g number:38
|g day:27
|g month:09
|g pages:e2302059
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|u http://dx.doi.org/10.1002/adma.202302059
|3 Volltext
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