Wetting-Enhanced Structural Color for Convenient and Reversible Encryption of Optical Information.
Wetting-Enhanced Structural Color for Convenient and Reversible Encryption of Optical Information.
复制标题
DOI：
10.1021/acsami.1c13469
复制
发表时间：
2021-08
影响因子：
9.5
通讯作者：
Fengting Huang;Yanhong Weng;Yanxuan Lin;Xingcai Zhang;Yuanfeng Wang;Shiguo Chen
中科院分区：
文献类型：
--
作者：
Fengting Huang;Yanhong Weng;Yanxuan Lin;Xingcai Zhang;Yuanfeng Wang;Shiguo Chen
光学信息的加密存储在防伪、信息传输和军事应用方面引起了越来越多的兴趣。在本研究中，研制了一种反蛋白石结构的二氧化钛/十六氟癸基三甲氧基硅烷（IOS-T/F）面板。该面板基于一种独特的润湿增强机制，该机制源于减少光散射和增强有效折射率，该面板能够可逆地写入/擦除光学信息和加密/解密。通过可控的紫外线照射，形成有图案的亲疏水差异，就可以对多层信息进行编译、隐藏和擦除，揭示或隐藏信息的过程只需要几滴水或蒸发即可。重要的是，IOS-T/F面板的功能可以在恶劣条件下很好地保持，包括强酸性/碱性环境或极端温度（从-40到80°C），并且可以在各种污染物染色后恢复。该系统提供了简单的加密、快速的解密以及在不同应用场景下存储多组信息的能力，为安全相关应用和智能光学系统提供了一种新的材料设计策略。
Encrypted storage of optical information has attracted increasing interest for anticounterfeiting, information transmission, and military applications. In this study, an inverse opal-structured titanium dioxide/heptadecafluorodecyltrimethoxysilane (IOS-T/F) panel is developed. Based on a unique wetting-enhanced mechanism of structural color vision derived from a reduced light scattering and strengthened effective refractive index, this panel is capable of reversible writing/erasing and encryption/decryption of optical information. Multiple levels of information can be compiled, concealed, and erased simply using controlled ultraviolet irradiation to form patterned hydrophilic/hydrophobic differences, and the process of revealing or concealing the information only requires a few drops of water or evaporation, respectively. Importantly, the functions of the IOS-T/F panel can be well maintained under harsh conditions, including strongly acidic/alkaline environments or extreme temperatures (from -40 to 80 °C), as well as can be recovered after staining by various pollutants. This system provides simple encryption, rapid decryption, and the ability to store multiple sets of information under diverse application scenarios, which represents a novel material design strategy for security-related applications and smart optical systems.