东华大学学报（英文版）2024，Vol.41Issue(2)：137-145,9.DOI:10.19884/j.1672-5220.202304003
由菲咯啉基分子与聚乙烯醇共组装的可见光活化磷光系统
Visible Light-Activated Phosphorescence Systems Co-Assembled by Phenanthroline-Based Molecules with Polyvinyl Alcohol
摘要
Abstract
Developing pure organic room-temperature phosphorescence(RTP)materials with visible light activation has drawn widespread attention.In this work,a visible light-activated RTP design strategy was developed by incorporating the phenanthroline-based donor-acceptor(D-A)phosphor into a rigid polymer matrix polyvinyl alcohol(PVA).Phenanthroline with rich heteroatom N can promote the generation of triplet excitons and form abundant hydrogen bonds with PVA,inhibiting the non-radiative relaxation and thereby leading to phosphorescence.Upon irradiation with 420 nm visible light,the phosphorescence color of these doped PVA films can be shifted from green to yellow by regulating the molecular conjugated structure and D-A interaction.Based on the phosphorescence properties,these doped PVA films can be used for information encryption.This work offers a simple and feasible approach for constructing visible light-activated phosphorescence materials with excellent application prospects in information encryption,sensors and other fields.关键词
磷光/菲咯啉/可见光/聚合物体系Key words
phosphorescence/phenanthroline/visible light/polymer system分类
化学化工引用本文复制引用
张太广,刘栋良,吴宏伟..由菲咯啉基分子与聚乙烯醇共组装的可见光活化磷光系统[J].东华大学学报（英文版）,2024,41(2):137-145,9.基金项目
Shanghai Pujiang Program of China(No.20PJ1400500) （No.20PJ1400500）
International Cooperation Fund of Science and Technology Commission of Shanghai Municipality,China(No.21130750100) （No.21130750100）
Fundamental Research Funds for the Central Universities,China(No.2232022A-03) （No.2232022A-03）
