色域
结构着色
材料科学
光电子学
光子学
量子点
多路复用
墨水池
色阶
光学
纳米技术
光子晶体
计算机科学
物理
电信
复合材料
作者
Xiaojun Liu,Shuzhen Cui,Lang Qin,Yanlei Yu
标识
DOI:10.1002/adom.202302573
摘要
Abstract Skin‐inspired optical materials that combine both chemical and physical colors provide enhanced information capacity for potential applications in optical multiplexing and anti‐counterfeiting technologies. However, the existing materials suffer from the limitations of an extremely narrow gamut and incompatibility with universal patterning methods to program dual‐mode images. Here, novel two‐chromatic printing technology is proposed to create full‐color, high‐resolution, and geminate patterns by newly designed fluorescent liquid crystal nanocomposites. Such nanocomposites consist of porous cholesteric liquid crystal networks embedded with core–shell CdSe/ZnS quantum dots to produce extended wide color palettes of both photoluminescence and Bragg reflection. The drop‐on‐demand two‐chromatic printing technology simultaneously enables the construction and patterning of the nanocomposites in a high‐precision way, orthogonally tuning the hues of two color palettes according to Grassmann's and Bragg's law. Therefore, the combination of different color generation mechanisms offers a versatile toolbox, which can be generalized to pigmentary, photonic, and even dynamic optical materials.
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