热致变色
材料科学
钙钛矿(结构)
加密
热的
透光带
光电子学
计算机科学
纳米技术
化学工程
计算机安全
化学
物理
凝聚态物理
气象学
工程类
浮游植物
有机化学
营养物
作者
Xinru Yuan,J.Q. Wang,Yunlong Li,Hao Huang,Jiahong Wang,Tingting Shi,Yong Deng,Qiangqiang Yuan,Rui He,Paul K. Chu,Xue‐Feng Yu
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-04-13
标识
DOI:10.1021/acsnano.4c00938
摘要
Increasing modal variations of stimulus-responsive materials ensure the high capacity and confidentiality of information storage and encryption systems that are crucial to information security. Herein, thermochromic perovskite microcapsules (TPMs) with dual-variable and quadruple-modal reversible properties are designed and prepared on the original oil-in-fluorine (O/F) emulsion system. The TPMs respond to the orthogonal variations of external UV and thermal stimuli in four reversible switchable modes and exhibit excellent thermal, air, and water stability due to the protection of perovskites by the core-shell structure. Benefiting from the high-density information storage TPMs, multiple information encryptions and decryptions are demonstrated. Moreover, a set of devices are assembled for a multilevel information encryption system. By taking advantage of TPMs as a "private key" for decryption, the signal can be identified as the corresponding binary ASCII code and converted to the real message. The results demonstrate a breakthrough in high-density information storage materials as well as a multilevel information encryption system based on switchable quadruple-modal TPMs.
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