• • Wrinkle wavelength tunable from 6.1 to 25.0 μm via orthogonal modulation of plasma power, pressure, and time, enabling precise control over optical properties for anti-counterfeiting applications.
• • Cryptographic performance metrics: uniformity close to 0.5, Shannon entropy close to 1, and inter-/intra-label Hamming distance approximately 0.5, ensuring high unpredictability and uniqueness of PUF labels.
• • Environmental stability: similarity >84% after storage at 2°C and 50°C for 48 h, demonstrating robustness for real-world deployment in varied climates.
• • Dual-mode luminescence from UCNPs and RE-MOFs provides full-spectrum emission, enabling spatially segmented fluorescence for multi-level security and easy verification with simple optical equipment.