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241007s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202407916
|2 doi
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|a pubmed24n1560.xml
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|a (NLM)39374028
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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 Zhou, Zixing
|e verfasserin
|4 aut
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| 245 |
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|a Achieving Efficient X-ray Scintillation of Purely Organic Phosphorescent Materials by Chromophore Confinement
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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 07.10.2024
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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 Scintillators have attracted significant attention due to their wide-ranging applications in both industrial and medical fields. However, one of the ongoing challenges is the efficient utilization of triplet excitons to achieve high radioluminescence efficiency. Here, a series of purely organic phosphors is presented for X-ray scintillation, employing a combined rigid and flexible host-guest doping strategy. The doped crystals exhibit a remarkable maximum phosphorescence efficiency of 99.4% under UV excitation. Furthermore, upon X-ray irradiation, the radioluminescence intensities of the doped phosphors are markedly higher compared to their single-component crystal counterparts. Through systematic investigations, it is demonstrated the crucial role of confining isolated chromophores in enhancing scintillation efficiency. Additionally, a transparent scintillator screen fabricated with the doped phosphor exhibits excellent X-ray imaging performance, achieving a high spatial resolution of 18.0 lp mm-1. This work not only offers valuable insights into suppressing non-radiative transitions of triplet excitons during scintillation but also opens a new avenue for designing highly efficient purely organic phosphorescent scintillators
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|a Journal Article
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|a chromophore confinement
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4 |
|a host‐guest doping
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4 |
|a organic scintillator
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|a radioluminescence
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4 |
|a room‐temperature phosphorescence
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|a Wang, Xiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lv, Anqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ding, Meijuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Song, Zhicheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Huili
|e verfasserin
|4 aut
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| 700 |
1 |
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|a An, Zhongfu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Wei
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2024) vom: 07. Okt., Seite e2407916
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g year:2024
|g day:07
|g month:10
|g pages:e2407916
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|u http://dx.doi.org/10.1002/adma.202407916
|3 Volltext
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