Efficient persistent afterglow modulation using extended Indolo[2,3- a ]carbazoles with six-membered rings in a polymer matrix

Chemical Science 2026 Open access

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Authors: Yu Lang, Jiahui Sun, Mengyao Jiang, Qingyun Jiang, Yongkang Du, Feng Wang, Jiadong Zhou, Guang Shi, Bingjia Xu, Cong Liu
DOI: 10.1039/d5sc10031c
Cited by: 4
References: 55

Abstract

), consequently driving the ISC process for pure phosphorescence afterglow, featuring an ultralong lifetime of 3.05 s and an impressive phosphorescence quantum yield of 17.59%. The afterglow duration for BICz-MF film exceeds 30 s in an ambient environment, substantially outperforming conventional ICz systems. Furthermore, a triplet-sensitized Förster resonance energy transfer (TS-FRET) strategy enables multicolor afterglow for optical encryption. This study establishes a generalizable molecular design principle for high-efficiency and long-afterglow organic materials.

Fields of Study & Subjects

Synthesis and Properties of Aromatic Compounds Luminescence and Fluorescent Materials Organic Light-Emitting Diodes Research

Publication details

Journal / source
Chemical Science
Publisher
Royal Society of Chemistry (RSC)
Volume
17
Issue
18
Pages
9098–9107
Publication date
1 January 2026
Language
EN