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240923s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202409338
|2 doi
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|a pubmed24n1546.xml
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|a (DE-627)NLM377952702
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|a (NLM)39308317
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Li, Huanhuan
|e verfasserin
|4 aut
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|a Constructing Organic Phosphorescent Scintillators with Enhanced Triplet Exciton Utilization Through Multi-Mode Radioluminescence for Efficient X-Ray Imaging
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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 23.09.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a The development of organic phosphorescent scintillators with high exciton utilization efficiency has attracted significant attention but remains a difficult challenge because of the inherent spin-forbidden feature of X-ray-induced triplet excitons. Herein, a design strategy is proposed to develop organic phosphorescent scintillators through thermally activated exciton release to convert stabilized spin-forbidden triplet excitons to spin-allowed singlet excitons, which enables singlet exciton-dominated multi-mode emission simultaneously from the lowest singlet, triplet, and stabilized triplet states. The resultant scintillators demonstrate a maximum photoluminescence efficiency of 65.8% and a minimum X-ray radiation detection limit of 110 nGy s-1; this allows efficient radiography imaging with a spatial resolution of ≈10.0 lp mm-1. This study advances the fundamental understanding of exciton dynamics under X-ray excitation, significantly broadening the practical use of phosphorescent materials for safety-critical industries and medical diagnostics
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|a Journal Article
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|a X‐ray radiation
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|a multi‐mode luminescent
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|a organic phosphorescent
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|a scintillators
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|a triplet excitons
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|a Liu, Yitong
|e verfasserin
|4 aut
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1 |
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|a Zhao, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cao, Hengyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Xin
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Shuman
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Xi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Hui
|e verfasserin
|4 aut
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| 700 |
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|a Tao, Ye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xie, Gaozhan
|e verfasserin
|4 aut
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| 700 |
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|a Li, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Runfeng
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Wei
|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 (2024) vom: 23. Sept., Seite e2409338
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g year:2024
|g day:23
|g month:09
|g pages:e2409338
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|u http://dx.doi.org/10.1002/adma.202409338
|3 Volltext
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