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An ultralong room-temperature phosphorescent material based on the combination of small singlet–triplet splitting energy and H-aggregation

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Abstract

Compound AI-N-Cz was conveniently synthesized, and it exhibited ultralong room-temperature phosphorescence (RTP) with a lifetime of 775 ms, which was more than 400 times the RTP lifetime of its isomer AI-Cz (1.9 ms). The ultralong RTP of AI-N-Cz might be due to the combination of small singlet–triplet splitting energy (ΔEST) and H-aggregation, and this could be an efficient strategy for the further design of ultralong organic room-temperature materials.

Graphical abstract: An ultralong room-temperature phosphorescent material based on the combination of small singlet–triplet splitting energy and H-aggregation

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Article information


Submitted
12 Dec 2019
Accepted
10 Mar 2020
First published
10 Mar 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

An ultralong room-temperature phosphorescent material based on the combination of small singlet–triplet splitting energy and H-aggregation

L. Zhang, M. Li, Q. Gao and C. Chen, Chem. Commun., 2020, Advance Article , DOI: 10.1039/C9CC09636A

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