journal article·2026-01Open access

Visible‐Light‐Activated Organic Room‐Temperature Phosphorescence via Supramolecular Self‐Assembly in Single‐Component Crystal

Huiting Mao, Jiahui Guo, Huili Ma, Zhibo Gong, Shijuan Liu, Guo‐Gang Shan, Weijun Zhao, Zhongmin Su

Advanced Optical Materials· Volume 14· Issue 4

Abstract

Abstract Visible‐light‐excited room‐temperature phosphorescence (RTP) materials possess significant potential for various practical applications, especially for biological and life related fields. However, developing highly simplified and easily accessible RTP materials that can be activated by visible light remains a significant challenge. Herein, a facile one‐step oxidative strategy is reported to directly convert unsubstituted phenothiazine molecule into a self‐assembled supramolecular architecture, which exhibits highly efficient RTP with an impressively long lifetime of 305 ms and a phosphorescence quantum yield of 2.0%. The resulting supramolecular framework based on single‐component molecular crystal can be formed via abundant hydrogen bonds and π ··· π interactions. These intermolecular forces construct a rigid 3D network that effectively confine molecular motion, which not only promotes intermolecular electronic coupling and increases the concentration of triplet excitons but also suppresses nonradiative decay pathways of triplet excitons. These factors collectively induce the redshifted absorption and enable visible‐light‐excited RTP in the extremely simple supermolecules. Given these features, it is successfully applied in multi‐level data encryption and decryption. This work provides a promising strategy for the development of single‐component RTP materials under visible excitation.
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Research context

OpenAlex topics: Luminescence and Fluorescent Materials · Synthesis and Properties of Aromatic Compounds · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemical and Environmental Engineering Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry Jilin Provincial International Joint Research Center of Photofunctional Materials and Chemistry Changchun University of Science and Technology Changchun 130022 China

College of Life Science Dalian Minzu University Dalian 116600 China

Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM) Nanjing Tech University 30 South Puzhu Road Nanjing 211816 China

Institute of Functional Materials Chemistry Northeast Normal University Changchun Jilin 130024 China

Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Shanghai Key Laboratory of Functional Materials Chemistry Feringa Nobel Prize Scientist Joint Research Center Institute of Fine Chemicals Frontiers Science Center for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Jilin Province

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