材料科学与工程学报2026，Vol.44Issue(1)：84-91,102,9.DOI:10.14136/j.cnki.issn1673-2812.2026.01.011
基于CsPbBr3量子点-聚合物复合薄膜的防水与柔性荧光防伪图案
Waterproof and Flexible Fluorescent Anti-counterfeiting Pattern Based on CsPbBr3 Quantum Dot-polymer Composite Membranes
张振宇1
作者信息
- 1. 深圳大学射频异质异构集成全国重点实验室,广东 深圳 518060
- 折叠
摘要
Abstract
The practical application of lead halide perovskite quantum dots(QDs)in display devices remains constrained by critical challenges regarding stability and mechanical flexibility.This study successfully incorporated pre-crystallized colloidal QDs uniformly and non-destructively into a polymethyl methacrylate matrix to fabricate a QD-polymer composite membrane.Within this composite architecture,the polymer long chains provide structural support and surface encapsulation for QDs via complex network structures and ion-dipole interactions,thereby significantly enhancing the resistance to environmental stimuli and improving its overall mechanical properties.By employing a high-temperature embossing heat treatment strategy combined with heavy metal masks to modulate the surface heat conduction process,the controlled thermal decomposition of QDs is achieved.The resulting structural damage to the QD surfaces induced quenching of fluorescence intensity,yielding high-contrast fluorescent patterns.Simultaneously,the intact QD lattices maintain absorption properties of membranes,rendering the fluorescent pattern covert under natural light.This study demonstrates successful application of fluorescent anti-counterfeiting patterns based on perovskite QD-polymer composite films,offering a novel research direction and engineering solution for expanding the utility of perovskite QDs in display technologies.关键词
钙钛矿量子点/复合薄膜/荧光防伪图案/压模热处理/聚合物Key words
Perovskite quantum dots/Composite membranes/Fluorescent anti-counterfeiting patterns/Embossing heat treatment/Polymer分类
通用工业技术引用本文复制引用
张振宇..基于CsPbBr3量子点-聚合物复合薄膜的防水与柔性荧光防伪图案[J].材料科学与工程学报,2026,44(1):84-91,102,9.
