Azo-carbazole copolymer-based composite films with high optical transparency for updatable holograms
Azo-carbazole copolymer-based composite films with high optical transparency for updatable holograms
复制标题
具有高光学透明度的偶氮咔唑共聚物基复合薄膜，用于可更新的全息图
DOI：
10.1039/d2nj05779d
复制
发表时间：
2023
影响因子：
3.3
通讯作者：
Jackin Boaz Jessie
中科院分区：
文献类型：
--
作者：
Kinashi Kenji;Nakanishi Ikumi;Sakai Wataru;Tsutsumi Naoto;Jackin Boaz Jessie
开发具有高衍射效率、快速响应时间、具有光学保存稳定性和长期光学透明性的全息光栅材料是可更新全息图实用化的关键。利用光功能材料识别可更新全息图是实现可更新全息术的关键。由3-[(4-氰苯基)偶氮]-9H-咔唑-9-乙基丙烯酸酯(含CACHE的丙烯酸酯单体)与甲基丙烯酸甲酯(MMA)和偶氮咔唑染料3-[(4-氰苯基)偶氮]-9H-咔唑-9-乙醇(CACHE)组成的偶氮苯功能化共聚物全息复合材料被认为是一种有前途的可更新全息材料。以共聚物聚(CACHE-MMA)为基料，加入增塑剂制备了偶氮咔唑染料CACHE复合材料，并从拉曼-纳氏衍射性能、紫外-可见吸收光谱和雾度等方面对其进行了评价。具有最显著全息性能的增塑复合材料是聚(聚甲基丙烯酸甲酯)/聚甲基丙烯酸甲酯/聚二甲基硅氧烷(45/15/5wt%)，其一级衍射效率(η1)、响应时间(τ)、保留率(R300s)和雾度分别为29.5%、2.1 S、94%和1.2%。用聚(CACHE-MMA)/CACHE/DPP(50/15/5wt%)复合膜记录的全息立体图和Lippmann全息图被再现，并通过进一步的热处理刷新到其原始状态。因此，聚(CACHE-MMA)/CACHE/DPP(45/15/5wt%)复合材料有望为可更新全息图的应用做出有价值的贡献。
The development of materials with high diffraction efficiency, fast response time, holographic gratings with optical preservation stability, and long-term optical transparency are key for the practical application of updatable holograms. The identification of updatable holograms using photofunctional materials is essential to achieving updatable holography. A holographic composite material based on an azobenzene-functionalized copolymer consisting of 3-[(4-cyanophenyl)azo]-9H-carbazole-9-ethyl acrylate (acrylate monomer with CACzE) with methyl methacrylate (MMA) (poly(CACzE-MMA)) and the azo-carbazole dye 3-[(4-cyanophenyl)azo]-9H-carbazole-9-ethanol (CACzE) has been proposed as a promising candidate for updatable holographic materials. The holographic composite materials are based on the copolymer poly(CACzE-MMA)); azo-carbazole dye CACzE composites were added with plasticizers, and their plasticized composites were evaluated from their Raman-Nath diffraction properties, UV-visible absorption spectra, and haze values. The plasticized composite material that exhibited the most remarkable holographic properties was poly(CACzE-MMA)/CACzE/DPP (45/15/5 wt%), with first-order diffraction efficiency (η1), response time (τ), retention ratio (R300s), and haze values of 29.5%, 2.1 s, 94%, and 1.2%, respectively. The holographic stereograms and Lippmann holograms recorded using the poly(CACzE-MMA)/CACzE/DPP (50/15/5 wt%) composite film were reconstructed and were refreshed to their original states by further heat treatment. Accordingly, the poly(CACzE-MMA)/CACzE/DPP (45/15/5 wt%) composite material is expected to make a valuable contribution to the application of updatable holograms.