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Bionic Micro-Texture Duplication and RE3+ Space-Selective Doping of Unclonable Silica Nanocomposites for Multilevel
Jiaxin Yang1, Ming Feng1, Jingru Wang1
1Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics, Nankai University, Tianjin, 300071, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|September 14, 2023
Summary
Researchers developed multicolor micro-texture-based physical unclonable functions (PUFs) fluorescence glass labels for secure data storage and encryption. This novel approach uses rare-earth ions and bionic micro-textures for advanced anti-counterfeiting.
Area of Science:
- Optoelectronics and Materials Science
- Nanotechnology and Surface Engineering
- Information Security and Cryptography
Background:
- Optical data storage and information encryption using glass substrates offer significant potential in optoelectronics.
- Challenges in glass-based encryption include its inherent hardness, brittleness, and high melting point, hindering multi-dimensional approaches.
- Existing methods lack the sophistication for robust, multi-level security features required for advanced applications.
Purpose of the Study:
- To develop novel, multi-dimensional information encryption methods utilizing glass substrates.
- To create robust and unclonable physical unclonable functions (PUFs) for enhanced security applications.
- To explore the integration of bionic structures and rare-earth ion fluorescence for advanced anti-counterfeiting solutions.
Main Methods:
- Fabrication of multicolor micro-texture-based physical unclonable functions (PUFs) fluorescence glass labels (MTPLs) using UV-curable silica nanocomposites and soft replication.
- Simultaneous space-selective doping of rare-earth ions (RE3+) and bionic micro-texture replication onto transparent glass.
- Development of tunable multilevel authentication models including 2D patterns, 3D information, and intelligent authentication.
Main Results:
- Achieved the first simultaneous rare-earth ion space-selective doping and bionic micro-texture replication on glass.
- Demonstrated selective control over RE3+ doping position, fluorescence color, and micro-texture height for multi-level encryption.
- Engineered micro-scale MTPLs with tunable authentication, including macro-scale multicolor patterns and micro-scale 3D information.
- Established a high-performance anti-counterfeiting platform leveraging the robustness and security of MTPLs.
Conclusions:
- The developed bionic MTPLs, based on RE3+ doping and micro-texture duplication, offer an effective approach for multi-level information encryption.
- This technology provides a potentially universal method for creating unclonable glass labels with intelligent authentication capabilities.
- The findings pave the way for advanced anti-counterfeiting strategies and secure optical data storage solutions.
