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Zhao C, Li Z, Xiang Z, Guo Z, Wang Z, Zhang M, Liu W. Trap Depth Engineering from Persistent Luminescence Phosphors Mg2-xZnxSnO4 for Dynamic Optical Information Encryption Application. Inorg Chem 2024; 63:13474-13483. [PMID: 38976574 DOI: 10.1021/acs.inorgchem.4c01519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Traditional information encryption materials that rely on fluorescent/phosphorescent molecules are facing an increasing risk of counterfeiting or tampering due to their static reading mode and advances in counterfeiting technology. In this study, a series of Mg2-xZnxSnO4 (x = 0.55, 0.6, 0.65, 0.7 0.75, 0.8) that realizes the writing, reading, and erasing of dynamic information is developed. When heated to 90 °C, the materials exhibit a variety of dynamic emission changes with the concentration of Zn2+ ions. As the doping concentration increased, the ratio of the shallow trap to deep trap changed from 7.77 to 20.86. When x = 0.55, the proportion of deep traps is relatively large, resulting in a higher temperature and longer time required to read the information. When x = 0.80, the proportion of shallow traps is larger and the encrypted information is easier to read. Based on the above features, encryption binary codes device was designed, displaying dynamic writing, reading, and erasing of information under daylight and heating conditions. Accordingly, this work provides reliable guidance on advanced dynamic information encryption.
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Affiliation(s)
- Chenyang Zhao
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
| | - Zihui Li
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
| | - Zhizhi Xiang
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
| | - Zhen Guo
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
| | - Zhenbin Wang
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
| | - Mingjin Zhang
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
| | - Weisheng Liu
- School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
- Qinghai Key Laboratory of Advanced Technology and Application of Environmental Functional Materials, Xining 810016, China
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Jiang L, Li J, Peng N, Gao M, Fu DY, Zhao S, Li G. Reversible stimuli responsive lanthanide-polyoxometalate-based luminescent hydrogel with shape memory and self-healing properties for advanced information security storage. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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