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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202207301
|2 doi
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|a pubmed24n1409.xml
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|a (DE-627)NLM350363609
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|a (NLM)36524445
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|a eng
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|a Ke, You
|e verfasserin
|4 aut
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|a Efficient and Bright Deep-Red Light-Emitting Diodes based on a Lateral 0D/3D Perovskite Heterostructure
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|c 2024
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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
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|2 rdacarrier
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|a Date Revised 16.05.2024
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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 Bright and efficient deep-red light-emitting diodes (LEDs) are important for applications in medical therapy and biological imaging due to the high penetration of deep-red photons into human tissues. Metal-halide perovskites have potential to achieve bright and efficient electroluminescence due to their favorable optoelectronic properties. However, efficient and bright perovskite-based deep-red LEDs have not been achieved yet, due to either Auger recombination in low-dimensional perovskites or trap-assisted nonradiative recombination in 3D perovskites. Here, a lateral Cs4PbI6/FAxCs1- xPbI3 (0D/3D) heterostructure that can enable efficient deep-red perovskite LEDs at very high brightness is demonstrated. The Cs4PbI6 can facilitate the growth of low-defect FAxCs1- xPbI3, and act as low-refractive-index grids, which can simultaneously reduce nonradiative recombination and enhance light extraction. This device reaches a peak external quantum efficiency of 21.0% at a photon flux of 1.75 × 1021 m-2 s-1, which is almost two orders of magnitude higher than that of reported high-efficiency deep-red perovskite LEDs. Theses LEDs are suitable for pulse oximeters, showing an error <2% of blood oxygen saturation compared with commercial oximeters
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|a Journal Article
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|a 0D/3D perovskite heterostructure
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|a deep‐red perovskite light‐emitting diodes
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|a efficiency
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|a oximeters
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|a Guo, Jingshu
|e verfasserin
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|a Kong, Decheng
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|a Wang, Jingmin
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|a Kusch, Gunnar
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|a Lin, Chen
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|a Liu, Dawei
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|a Kuang, Zhiyuan
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|a Qian, Dongmin
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|a Zhou, Fuyi
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|a Zhang, Guangbin
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|a Niu, Meiling
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|a Cao, Yu
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|a Oliver, Rachel A
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|a Dai, Daoxin
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|a Jin, Yizheng
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|a Wang, Nana
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|a Huang, Wei
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|a Wang, Jianpu
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 20 vom: 21. Mai, Seite e2207301
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:20
|g day:21
|g month:05
|g pages:e2207301
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|u http://dx.doi.org/10.1002/adma.202207301
|3 Volltext
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