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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202103640
|2 doi
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|a pubmed24n1566.xml
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|a (DE-627)NLM330998137
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|a (NLM)34558117
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Yuan, Shuai
|e verfasserin
|4 aut
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| 245 |
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|a Efficient and Spectrally Stable Blue Perovskite Light-Emitting Diodes Employing a Cationic π-Conjugated Polymer
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 13.10.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Metal halide perovskite semiconductors have demonstrated remarkable potentials in solution-processed blue light-emitting diodes (LEDs). However, the unsatisfied efficiency and spectral stability responsible for trap-mediated non-radiative losses and halide phase segregation remain the primary unsolved challenges for blue perovskite LEDs. In this study, it is reported that a fluorene-based π-conjugated cationic polymer can be blended with the perovskite semiconductor to control film formation and optoelectronic properties. As a result, sky-blue and true-blue perovskite LEDs with Commission Internationale de l'Eclairage coordinates of (0.08, 0.22) and (0.12, 0.13) at the record external quantum efficiencies of 11.2% and 8.0% were achieved. In addition, the mixed halide perovskites with the conjugated cationic polymer exhibit excellent spectral stability under external bias. This result illustrates that π-conjugated cationic polymers have a great potential to realize efficient blue mixed-halide perovskite LEDs with stable electroluminescence
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|a Journal Article
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4 |
|a blue emissions
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|a high efficiencies
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|a ion migrations
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|a perovskite light-emitting diodes
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4 |
|a stabilities
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|a Cui, Lin-Song
|e verfasserin
|4 aut
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1 |
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|a Dai, Linjie
|e verfasserin
|4 aut
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|a Liu, Yun
|e verfasserin
|4 aut
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|a Liu, Qing-Wei
|e verfasserin
|4 aut
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|a Sun, Yu-Qi
|e verfasserin
|4 aut
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|a Auras, Florian
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|4 aut
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|a Anaya, Miguel
|e verfasserin
|4 aut
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|a Zheng, Xiaopeng
|e verfasserin
|4 aut
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1 |
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|a Ruggeri, Edoardo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, You-Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qu, Yang-Kun
|e verfasserin
|4 aut
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1 |
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|a Abdi-Jalebi, Mojtaba
|e verfasserin
|4 aut
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1 |
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|a Bakr, Osman M
|e verfasserin
|4 aut
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1 |
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|a Wang, Zhao-Kui
|e verfasserin
|4 aut
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|a Stranks, Samuel D
|e verfasserin
|4 aut
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1 |
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|a Greenham, Neil C
|e verfasserin
|4 aut
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|a Liao, Liang-Sheng
|e verfasserin
|4 aut
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| 700 |
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|a Friend, Richard H
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 45 vom: 30. Nov., Seite e2103640
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:33
|g year:2021
|g number:45
|g day:30
|g month:11
|g pages:e2103640
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202103640
|3 Volltext
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|d 33
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