Biobased and biodegradable films exhibiting circularly polarized room temperature phosphorescence

There is interest in developing sustainable materials displaying circularly polarized room-temperature phosphorescence, which have been scarcely reported. Here, we introduce biobased thin films exhibiting circularly polarized luminescence with simultaneous room-temperature phosphorescence. For this...

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Bibliographic Details
Published in:Nature communications 2024-03, Vol.15 (1), p.2375-2375, Article 2375
Main Authors: Cao, Mengnan, Ren, Yiran, Wu, Yue, Shen, Jingjie, Li, Shujun, Yu, Zhen-Qiang, Liu, Shouxin, Li, Jian, Rojas, Orlando J., Chen, Zhijun
Format: Article
Language:English
Subjects:
147/135
639/301/923/1028
639/638/224/685
639/638/298/398
Biodegradability
Biodegradation
Biomolecules
Cellulose
Chirality
Circular polarization
Crystals
Data processing
Humanities and Social Sciences
Information processing
Lignin
Lignosulfonates
multidisciplinary
Nanocrystals
Phosphorescence
Room temperature
Science
Science (multidisciplinary)
Soil conditions
Sulfonation
Sustainable materials
Thin films
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Summary:There is interest in developing sustainable materials displaying circularly polarized room-temperature phosphorescence, which have been scarcely reported. Here, we introduce biobased thin films exhibiting circularly polarized luminescence with simultaneous room-temperature phosphorescence. For this purpose, phosphorescence-active lignosulfonate biomolecules are co-assembled with cellulose nanocrystals in a chiral construct. The lignosulfonate is shown to capture the chirality generated by cellulose nanocrystals within the films, emitting circularly polarized phosphorescence with a 0.21 dissymmetry factor and 103 ms phosphorescence lifetime. By contrast with most organic phosphorescence materials, this chiral-phosphorescent system possesses phosphorescence stability, with no significant recession under extreme chemical environments. Meanwhile, the luminescent films resist water and humid environments but are fully biodegradable (16 days) in soil conditions. The introduced bio-based, environmentally-friendly circularly polarized phosphorescence system is expected to open many opportunities, as demonstrated here for information processing and anti-counterfeiting. Sustainable materials with circularly polarized room-temperature phosphorescence are desirable but challenging to design. Here, the authors report the development of thin films, based on cellulose nanocrystals and lignosulfonate, with circularly polarised room temperature phosphorescence.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-45844-5