Polymer Bragg stack as color tunable photonic paper
Polymer Bragg stack as color tunable photonic paper
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聚合物布拉格堆叠作为颜色可调光子纸
DOI：
10.1039/c2jm15943k
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发表时间：
2012-01-01
影响因子：
--
通讯作者：
Yang, Bai
中科院分区：
文献类型：
--
作者：
Wang, Zhanhua;Zhang, Junhu;Yang, Bai
通过交替使用PMMA和PNIPAM-co-PGMA薄膜，成功制备了具有完美光学调谐和独特绚丽色彩的聚合物一维光子晶体，通过结合自上而下的辅助光刻，可以轻松地将其加工为光子纸。这种光子纸是通过紫外光与光掩模交联而预先写好的，并用水作为墨水来读取。通过反复将材料暴露于水和空气中，书写和擦除过程可以平稳可逆。书写在纸上的字母的颜色可以通过调节交联密度和油墨温度来调节。此外，通过使光子纸的不同区域的交联程度不同，可以将多种颜色同时集成到光子纸上。本发明制作方法简单、成本低，易于大面积制作。光子纸的集成特性及其随外界刺激的变化规律使其在彩色传感器、安全标签、全彩印刷、显示等方面具有广阔的应用前景。
Polymer 1D photonic crystals with perfect optical tuning and distinctive brilliant colors are successfully fabricated through alternating thin films of PMMA and PNIPAM-co-PGMA, which can be easily processed as photonic paper by combining with top-down assisted photolithograph. The photonic paper is prewritten by ultraviolet light cross-linking with a photo mask and read with water as ink. The writing and erasing process is smoothly reversible by repeatedly exposing the material to water and air. The color of letters written on the paper can be modulated by tuning the cross-linking density and ink temperature. Moreover, multicolors can be integrated onto the photonic paper simultaneously by making the degree of cross-linking of different regions of the photonic paper different. The fabrication method is simple and low-cost, and the photonic paper can be easily manufactured in large areas. The integrated multicolor and its diverse change with external stimuli promises the photonic paper lots of potential applications, such as colorful sensors, security labels, full-color printing, displays and so on.