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240216s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202313247
|2 doi
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|a pubmed24n1417.xml
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|a eng
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|a Han, Kai
|e verfasserin
|4 aut
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|a Narrow-Band Green-Emitting Hybrid Organic-Inorganic Eu (II)-Iodides for Next-Generation Micro-LED Displays
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|c 2024
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 24.05.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Low-dimensional metal halide perovskites are an emerging class of light-emitting materials for LED-based displays; however, their B-site cations are confined to ns2, d5, and d10 metals. Here, the design of divalent rare earth ions at B-site is presented and a novel Eu(II)-based iodide hybrid is reported with efficient (PLQY ≈98%) narrow-band (FWHM ≈43 nm) green emission and high thermal stability (97%150 °C). Owing to reduced lattice vibrations and shrunken average distance of Eu(II)-iodide bonds in the face-sharing 1D-structure, photoluminescence from Eu(II) 4f-5d transition appears along with elevated crystal-field splitting of 5d energy level. The Eu(II)-based iodide hybrid is further demonstrated for color-pure green phosphor-converted LEDs with a maximum brightness of ≈396 000 cd m-2 and photoelectric efficiency of 29.2%. High-resolution micrometer-scale light-emitting diode (micro-LED) displays (2540 PPI) via the solution-processed screen is also presented. This work thus showcases a compelling narrow-band green emitter for commercial micro-LED displays
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|a Journal Article
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|a hybrid metal halides
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|a light‐emitting diodes
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|a molecular dimensionality
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|a narrow‐band emission
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|a photoluminescence (PL)
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|a Jin, Jiance
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Xinquan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Duan, Yan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kovalenko, Maksym V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xia, Zhiguo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 21 vom: 01. Mai, Seite e2313247
|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:21
|g day:01
|g month:05
|g pages:e2313247
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|u http://dx.doi.org/10.1002/adma.202313247
|3 Volltext
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