Affiliation:
1. Key Laboratory of Bio‐based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin 150040 P. R. China
2. Department of Chemistry University of Bath Bath BA2 7AY UK
3. School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 P. R. China
Abstract
AbstractProducing mechanic robust and sustainable room temperature phosphorescent (RTP) films in a convenient manner is a fundamental requirement but remains challenging. Here, an efficient “top‐down” method for processing natural wood into RTP films is developed. Specifically, natural wood is partially delignified to increase its processability in the first step. After that, the treated wood is converted to W‐film with a tensile strength of 273.6 MPa via mechanical pressing. The lignin units are well confined by cellulose in the W‐film, triggering RTP emission with a lifetime of ≈241.9 ms. Additionally, the W‐film exhibits good processability and energy transfer properties with Rhodamine B (RhB). Therefore, a series of multifunctional afterglow 2D and 3D RTP materials are constructed using W‐film as a building block. This research is expected to result in a convenient and sustainable method for the preparation of RTP films.
Funder
National Natural Science Foundation of China
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials