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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202108939
|2 doi
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|a pubmed25n1123.xml
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|a (DE-627)NLM337138060
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|a (NLM)35181956
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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 Chu, Shenglong
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Large-Area and Efficient Sky-Blue Perovskite Light-Emitting Diodes via Blade-Coating
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|c 2022
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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 21.04.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Large-area fabrication of perovskite light-emitting diodes (PeLEDs) through mass-production techniques has attracted growing attention due to their potential applications in lighting. Several breakthroughs are made for red/infrared and green emissions. Nevertheless, large-area blue/sky-blue PeLEDs, a requisite color for lighting, have not yet been reported. Here, efficient and large-area sky-blue PeLEDs are fabricated through blade-coating supersaturated precursors. The volume ratio of dimethyl sulfoxide to dimethylformamide is tuned to obtain a supersaturated CsPb(Br0.84 Cl0.16 )3 solution. Blade-coating this supersaturated precursor results in nucleation in the solution phase with much higher nucleation sites, and a faster crystallization rate. The uniform films formed by this approach exhibit smaller grain size, lower trap density, and higher radiative recombination rate. The peak external quantum efficiency of the blade-coated PeLEDs reaches 10.3% with sky-blue emission (489 nm). Benefitting from the robustness of this blade-coating technique, large-area sky-blue PeLEDs with a device area of 28 cm2 are also achieved with uniform emission. This work represents a significant step forward toward flat-panel lighting and full-color display for the PeLEDs
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|a Journal Article
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|a blade coating
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4 |
|a crystallization control
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|a large-area fabrication
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|a metal halide perovskites
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4 |
|a sky-blue light-emitting diodes
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1 |
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|a Zhang, Yihan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiao, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Wenjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tang, Rongfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shao, Yi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Tao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Xiaoqiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Fengguang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiao, Zhengguo
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 16 vom: 21. Apr., Seite e2108939
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:34
|g year:2022
|g number:16
|g day:21
|g month:04
|g pages:e2108939
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202108939
|3 Volltext
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