文献类型：期刊文献

英文题名：Programming multicolour micro-patterns via regional polymer-stabilized heliconical soft architecture

作者：Liu, Bing-Hui[1];Yuan, Cong-Long[1];Hu, Hong-Long[2];Sun, Pei-Zhi[1];Yu, Li-Hong[3];Zheng, Zhi-Gang[1,3]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China

年份：2022

卷号：10

期号：44

起止页码：16924

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY C

收录：;EI(收录号：20224813165801);WOS:【SCI-EXPANDED(收录号:WOS:000882031100001)】；

基金：The authors acknowledge the support from the National Science Foundation of China (grant no. 61822504, 51873060, 62035008 and 62275081), Innovation Program of Shanghai Municipal Education Commission, Scientific Committee of Shanghai (2021-01-07-00-02-E00107), and "Shuguang Program" of Shanghai Education Development Foundation and Shanghai Municipal Education Commission (21SG29).

语种：英文

外文关键词：Color - Cryptography - Diffraction gratings - Electric fields - Modulation - Photonics

摘要：Structural colours have broad applications in advanced photonics due to the various advantages of fade-resistance, high resolution and saturation. Nevertheless, leveraging the structural colours of adaptive systems with dynamical wide-colour-range tunability and achieving the regional modulation of colourful and vibrant patterns with high saturation are always formidable challenges. Herein, we demonstrate a programming micro-patterns technology of heliconical architecture by regional polymer stabilization based on a polymerizable heliconical system, showing high saturation and full-colour range covering visible light by controlling an applied electric field. The strategy realizes a regionally tunable pattern of a dual structural colour grating, in which the grating pattern contains a stabilized colour and an electrically drivable colour, thus enabling the modulation, concealment, display and erasure of a desirable colourful pattern and its optical vortex diffraction with orbital angular momentum. In addition, a series of high-resolution multiple structural colour patterns of heliconical architecture by programming stepwise exposure are developed, realizing multicolour anti-counterfeiting labels with arbitrary designed patterns, reversible dual information switch and encryption, and matrix encoding of structural colours in a convenient, facile and power-saving way. We envision that this work can expand the understanding of integrated and systematic photonics engineering, and inspire the practicality and development of adaptive photonics.