Photocured room temperature phosphorescent materials from lignosulfonate

Hongda Guo, Mengnan Cao, Ruixia Liu, Bing Tian, Shouxin Liu, Jian Li, Shujun Li, Bernd Strehmel, Tony D. James, Zhijun Chen

Research output: Contribution to journalArticlepeer-review

3 Citations (SciVal)

Abstract

Photocured room temperature phosphorescent (RTP) materials hold great potential for practical applications but are scarcely reported. Here, we develop photocured RTP materials (P-Lig) using a combination of lignosulfonate, acrylamide, and ionic liquid (1-ethyl-3-methylimidazolium bromide). With this design, lignosulfonate simultaneously serves as RTP chromophore and photoinitiator. Specifically, lignosulfonate in the ionic liquid generates radicals to polymerize the acrylamide upon UV irradiation. The resulting lignosulfonate is automatically confined in an as-formed crosslinked matrix to provide RTP. As such RTP with an emission lifetime of ~110 ms is observed from the confined lignosulfonate in P-Lig. Additionally, energy transfer occur between P-Lig and Rhodamine B (RhB), triggering red afterglow emission when P-Lig is in situ loaded with RhB (P-Lig/RhB). As a demonstration of potential applications, the P-Lig and P-Lig/RhB are used as photocured RTP coatings and RTP inks for fabricating 3D materials and for information encryption.

Original languageEnglish
Article number1590
JournalNature Communications
Volume15
Issue number1
DOIs
Publication statusPublished - 21 Feb 2024

Data Availability Statement

All relevant data are included in this article and its Supplementary Information files. Source data are provided with this paper. All data underlying this study are available from the corresponding author Zhijun Chen upon request. Source data are provided with this paper.

Funding

Z.J.C. wishes to thank the National Natural Science Foundation of China (31890774) and Fundamental Research Funds for the Central Universities (2572022CG02). T.D.J. wishes to thank the University of Bath and the Open Research Fund of the School of Chemistry and Chemical Engineering, Henan Normal University (2020ZD01) for support.

FundersFunder number
Henan Normal University2020ZD01
University of Bath
National Natural Science Foundation of China31890774
Fundamental Research Funds for the Central Universities2572022CG02

    ASJC Scopus subject areas

    • General Chemistry
    • General Biochemistry,Genetics and Molecular Biology
    • General Physics and Astronomy

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