State-of-the-art luminescent materials based on wood veneer with superior strength, transparency, and water resistance
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2023-02-15
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en
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Chemical Engineering Journal, Volume 454
Abstract
Current energy and luminescent materials utilize polymers to encapsulate fluorescent carbon nanodots and dyes but they usually lack stability and biodegradability. Here, we introduce an alternative wood nanotechnology to produce luminescent films (veneer) with UV resistance and tailorable surface energy. First, fluorescent and transparent wood (FTW) is shown as a support of aggregation-induced fluorescent emission (AIE) by in-situ Hantzsch reaction of acetoacetate delignified wood (AA-DW). Highly aligned cellulose nanofibers present in AA-DW facilitate FTW densification, ensuing exceptional mechanical performance (tensile strength and Young's modulus of up to 422 MPa and 45 GPa, respectively). Simultaneously, the conjugated structures display high transparency (83 %), haze (80 %) and optical anisotropy. The new luminescent system is demonstrated to be biodegradable and effective in optical (fluorescent) windows as well as encrypted films.Description
| openaire: EC/H2020/788489/EU//BioELCell Funding Information: The authors acknowledge funding support from the Guangdong Province Science Foundation (2017GC010429), the Guangdong Basic and Applied Basic Research Foundation (2022A1515010565), the Canada Excellence Research Chair Program (CERC-2018-00006), Canada Foundation for Innovation (Project number 38623) and the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 788489, “BioElCell”). Dr. Xiaotong Fu (Jiangnan University) is thanked for WAXS data processing and Ayako Takagi (UBC) for designing the model house.
Keywords
Aggregation-induced emission, Transparent wood, UV-blocking, Wood nanotechnology, Wood-based fluorescent films
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Citation
Wang, M, Liu, H, Feng, X, Wang, X, Shen, K, Qi, H & Rojas, O J 2023, ' State-of-the-art luminescent materials based on wood veneer with superior strength, transparency, and water resistance ', Chemical Engineering Journal, vol. 454, 140225 . https://doi.org/10.1016/j.cej.2022.140225