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|a 10.1002/adma.202404769
|2 doi
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|a pubmed24n1563.xml
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|a DE-627
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|a eng
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|a Zhang, Jingyu
|e verfasserin
|4 aut
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|a Exciton Dissociation and Recombination Afford Narrowband Organic Afterglow Through Efficient FRET
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 10.10.2024
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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 Organic afterglow with long-persistent luminescence (LPL) after photoexcitation is highly attractive, but the realization of narrowband afterglow with small full-width at half-maximum (FWHM) is a huge challenge since it is intrinsically contradictory to the triplet- and solid-state emission nature of organic afterglow. Here, narrow-band, long-lived, and full-color organic LPL is realized by isolating multi-resonant thermally activated delayed fluorescent (MR-TADF) fluorophores in a glassy steroid-type host through a facile melt-cooling treatment. Such prepared host becomes capable of exciton dissociation and recombination (EDR) upon photoirradiation for both long-lived fluorescence and phosphorescence; and, the efficient Förster resonance energy transfer (FRET) from the host to various MR-TADF emitters leads to high-performance LPL, exhibiting small FWHM of 33 nm, long persistent time over 10 s, and facile color-tuning in a wide range from deep-blue to orange (414-600 nm). Moreover, with the extraordinary narrowband LPL and easy processability of the material, centimeter-scale flexible optical waveguide fibers and integrated FWHM/color/lifetime-resolved multilevel encryption/decryption devices have been designed and fabricated. This novel EDR and singlet/triplet-to-singlet FRET strategy to achieve excellent LPL performances illustrates a promising way for constructing flexible organic afterglow with easy preparation methods, shedding valuable scientific insights into the design of narrow-band emission in organic afterglow
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|a Journal Article
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|a Förster resonance energy transfer
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|a charge‐separation
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|a narrowband emission
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4 |
|a organic afterglow
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1 |
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|a Wang, Wuji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bian, Yanfang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yike
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Xinchi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Zhenli
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Chengxi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Zecai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Xiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yuan, Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tao, Ye
|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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| 700 |
1 |
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|a Chen, Runfeng
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 41 vom: 02. Okt., Seite e2404769
|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:41
|g day:02
|g month:10
|g pages:e2404769
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|u http://dx.doi.org/10.1002/adma.202404769
|3 Volltext
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