A triboelectrically driven luminescent barcode system for self-powered optical identification

Le résumé fourni par la source

Information identification systems play a crucial role in personal authentication and IoT applications. This study presents a self-powered luminescent barcode system based on sliding-mode triboelectric-induced electroluminescence, where mechanical motion is directly converted into visible light signals through in situ triboelectrification. The system enables controlled modulation of emission intensity through material-dependent triboelectric polarization differences. Incorporating lead zirconate titanate with high dielectric constant enhances interfacial electric fields, significantly increasing luminescence intensity and enabling effective identification of dynamic optical patterns from random sliding motions. A C#-based barcode recognition system translates optical information into digital codes in real time, achieving 0.2-second response through optimized algorithms. The system allows direct smartphone decoding via WeChat Mini Programs without specialized equipment. The barcode card demonstrates high concealment, electromagnetic interference resistance, and cycling stability over 20,000 cycles. This self-powered system offers non-invasive recognition and reusability for IoT device authentication and personal information security applications.

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