Excellent Persistent Near‐Infrared Room Temperature Phosphorescence from Highly Efficient Host–Guest Systems
Abstract: Organic near‐infrared (NIR) room temperature phosphorescence (RTP) materials become a hot topic in bioimaging and biosensing for the large penetration depth and high signal‐to‐background ratio (SBR). However, it is challenging to achieve persistent NIR phosphorescence for severe nonradiative transitions by energy‐gap law. Herein, a universal system with persistent NIR RTP is built by visible (host) and NIR phosphorescence (guest) materials, which can efficiently suppress the nonradiative transitions by rigid environment of crystalline host materials with good matching, and further promote phosphorescence emission by the additional phosphorescence resonance energy transfer (≈100%) between them. The persistent NIR phosphorescence with ten‐folds enhancement of RTP lifetimes, compared to those of guest luminogens, can be achieved by modulation of aggregated structures of host–guest systems. This work provides a convenient way to largely prolong the phosphorescence lifetimes of various NIR luminogens, promoting their application in afterglow imaging with deeper penetration and higher SBRs.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Excellent Persistent Near‐Infrared Room Temperature Phosphorescence from Highly Efficient Host–Guest Systems ; day:17 ; month:05 ; year:2024 ; extent:10
Advanced science ; (17.05.2024) (gesamt 10)
- Urheber
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Li, Shuhui
Gu, Juqing
Wang, Jiaqiang
Yuan, Wentao
Ye, Guigui
Yuan, Likai
Liao, Qiuyan
Wang, Le
Li, Zhen
Li, Qianqian
- DOI
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10.1002/advs.202402846
- URN
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urn:nbn:de:101:1-2405171440047.556609563214
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:55 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Li, Shuhui
- Gu, Juqing
- Wang, Jiaqiang
- Yuan, Wentao
- Ye, Guigui
- Yuan, Likai
- Liao, Qiuyan
- Wang, Le
- Li, Zhen
- Li, Qianqian
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