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Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Photo-Responsive Organic RTP of Benzothiophene Derivative
Yuxuan Song1, Xuanhang Wang2, Chunjuan Li1
1State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, China.
Chemistry, an Asian Journal
|August 3, 2026
Summary
Researchers developed a new photo-responsive organic molecule for room temperature phosphorescence (RTP). This material allows light-based control of RTP and shows potential for optical data storage.
Area of Science:
- Materials Science
- Organic Electronics
- Photochemistry
Background:
- Photo-responsive organic room temperature phosphorescence (RTP) materials offer eco-friendly and accessible solutions for intelligent applications.
- Dynamic light-based regulation of RTP is challenging due to potential phosphorescence quenching by photo-responsive groups.
Purpose of the Study:
- To design and synthesize a novel photo-responsive RTP molecule for dynamic luminescence control.
- To investigate the molecule's response to UV irradiation and its potential for reversible switching and optical information storage.
Main Methods:
- Synthesis of 9-(1-benzothiophen-5-carbonyl)-9H-carbazole (CZ-CO-BT) using benzothiophene and carbazole units.
- Investigation of RTP intensity and lifetime changes under UV irradiation via [2+2] cycloaddition.
- Doping CZ-CO-BT into a polymer matrix to achieve reversible phosphorescent switching using oxygen-consuming/introducing cycles with UV light and heat.
Main Results:
- The synthesized CZ-CO-BT molecule demonstrated light-induced weakening of RTP intensity and lifetime through [2+2] cycloaddition.
- A reversible phosphorescent switch was successfully achieved by doping CZ-CO-BT into a polymer matrix.
- The molecule's photoswitching property was explored for optical information storage applications.
Conclusions:
- CZ-CO-BT enables photo-responsive triplet-state luminescence regulation.
- The developed material exhibits potential for reversible optical switching and data storage.
- This work highlights the application potential of photo-responsive RTP materials in advanced optical technologies.
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