Employing defect luminescence of LiGaO2 to realize dynamic readout and multiplexing of optical information

Xu, Yixuan; Wu, Junxiao; Zhang, Pengfei; Yan, Yingjuan; Song, Yingdan; Yakovlev, Alexey Nikolaevich; Hu, Tingting; Cherkasova, Tatiana Grigorievna; Xu, Xuhui; Guo, Haijie; Zhao, Lei

doi:10.1016/j.ceramint.2023.09.342

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…Trap depth engineering could achieve excellent energy storage and PersL properties of the material, so as to realize the high-capacity storage and the long-term storage of information in the information storage system. ,,− Amount of work has been done to regulate the traps of materials for the past few years. − For example, Liu et al reported that Bi 3+ ions can regulate the trap depth in the dynamic anticounterfeit material MgGa 2 O 4 : x % Bi 3+ . The anticounterfeiting patterns made of this material can be stored for several days, and the information can then be read and erased when illuminated by ultraviolet lamp .…”

Section: Introductionmentioning

confidence: 99%

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Zhao,

Li,

Xiang

et al. 2024

Inorg. Chem.

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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–x Zn x SnO4 (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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Section: Introductionmentioning

confidence: 99%

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Zhao,

Li,

Xiang

et al. 2024

Inorg. Chem.

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Degree of Crystal Structure Distortion-Induced Tunable LiGaO₂ Long Persistent Luminescence for Optical Information Encryption

Liang,

Ye,

Yang

et al. 2024

ACS Appl. Mater. Interfaces

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Employing defect luminescence of LiGaO2 to realize dynamic readout and multiplexing of optical information

Cited by 2 publications

References 27 publications

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Degree of Crystal Structure Distortion-Induced Tunable LiGaO₂ Long Persistent Luminescence for Optical Information Encryption

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Employing defect luminescence of LiGaO2 to realize dynamic readout and multiplexing of optical information

Cited by 2 publications

References 27 publications

Trap Depth Engineering from Persistent Luminescence Phosphors Mg2-xZnxSnO4 for Dynamic Optical Information Encryption Application

Trap Depth Engineering from Persistent Luminescence Phosphors Mg2-xZnxSnO4 for Dynamic Optical Information Encryption Application

Degree of Crystal Structure Distortion-Induced Tunable LiGaO2 Long Persistent Luminescence for Optical Information Encryption

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Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Degree of Crystal Structure Distortion-Induced Tunable LiGaO₂ Long Persistent Luminescence for Optical Information Encryption