التفاصيل البيبلوغرافية
| العنوان: |
Excellent Persistent Near‐Infrared Room Temperature Phosphorescence from Highly Efficient Host–Guest Systems |
| المؤلفون: |
Shuhui Li, Juqing Gu, Jiaqiang Wang, Wentao Yuan, Guigui Ye, Likai Yuan, Qiuyan Liao, Le Wang, Zhen Li, Qianqian Li |
| المصدر: |
Advanced Science, Vol 11, Iss 28, Pp n/a-n/a (2024) |
| بيانات النشر: |
Wiley, 2024. |
| سنة النشر: |
2024 |
| المجموعة: |
LCC:Science |
| مصطلحات موضوعية: |
energy transfer, intramolecular charge transfer, near‐infrared phosphorescence, prolonged lifetime, room temperature phosphorescence, Science |
| الوصف: |
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. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2198-3844 |
| Relation: |
https://doaj.org/toc/2198-3844 |
| DOI: |
10.1002/advs.202402846 |
| URL الوصول: |
https://doaj.org/article/d1b4aa08728b47598b355b44624efd21 |
| رقم الانضمام: |
edsdoj.1b4aa08728b47598b355b44624efd21 |
| قاعدة البيانات: |
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