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Stepwise taming of triplet excitons via multiple confinements in intrinsic polymers for long-lived room-temperature phosphorescence

Engineering and Technology

Stepwise taming of triplet excitons via multiple confinements in intrinsic polymers for long-lived room-temperature phosphorescence

L. Gao, J. Huang, et al.

Discover the groundbreaking research by Liang Gao and colleagues, which introduces an innovative polymeric room temperature phosphorescence system, boasting remarkable phosphorescence lifetimes and quantum yields. This advancement not only enables superior crack detection through moisture sensitivity but also opens intriguing possibilities for information storage, all derived from the intricate control of triplet excitons. Uncover how a simple polymer is revolutionizing materials science!

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Playback language: English
Abstract
This paper presents an intrinsically polymeric room temperature phosphorescence (RTP) system with long-lived phosphorescence, high quantum yields, and multiple colors achieved through stepwise structural confinement to control triplet excitons. The phosphorescence lifetime of one polymer (9VA-B) increased by over four orders of magnitude, reaching a maximum phosphorescence quantum yield of 16.04% in halogen-free polymers. The material's sensitivity to moisture is exploited for crack detection, and its varying phosphorescence lifetimes are used for information storage via Morse code.
Publisher
Nature Communications
Published On
Nov 09, 2023
Authors
Liang Gao, Jiayue Huang, Lunjun Qu, Xiaohong Chen, Ying Zhu, Chen Li, Quanchi Tian, Yanli Zhao, Chaolong Yang
Tags
room temperature phosphorescence
polymeric materials
phosphorescence lifetime
quantum yield
crack detection
information storage
triplet excitons

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