Room-temperature phosphorescent transparent wood

Xixi Piao, Tengyue Wang, Xuefeng Chen, Guangming Wang, Xiangxiang Zhai and Kaka Zhang (zhangkaka@sioc.ac.cn)
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Xixi Piao: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Tengyue Wang: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Xuefeng Chen: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Guangming Wang: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Xiangxiang Zhai: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Kaka Zhang: University of Chinese Academy of Sciences, Chinese Academy of Sciences

Nature Communications, 2025, vol. 16, issue 1, 1-16

Abstract: Abstract Transparent wood with high transmittance and versatility has attracted great attention as an energy-saving building material. Many studies have focused on luminescent transparent wood, while the research on organic afterglow transparent wood is an interesting combination. Here, we use luminescent difluoroboron β-diketonate (BF2bdk) compounds, methyl methacrylate (MMA), delignified wood, and initiators to prepare room-temperature phosphorescent transparent wood by thermal initiation polymerization. The resultant PMMA has been found to interact with BF2bdk via dipole-dipole interactions and consequently enhance the intersystem crossing of BF2bdk excited states. The transparent wood matrix can provide a rigid environment for BF2bdk triplets and serve as oxygen barrier to suppress non-radiative decay and oxygen quenching. The prepared afterglow material has the characteristics of diverse composition, long afterglow emission lifetimes, and high photoluminescence quantum yield. This afterglow transparent wood also demonstrates potential application value in areas such as high mechanical strength, good hydrophobicity, and high cost-effectiveness.

Date: 2025
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DOI: 10.1038/s41467-025-55990-z

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