High-Brightness and High-Resolution Triboelectrification-Induced Electroluminescence Skin for Photonic Imaging and Information Interaction

Self-powered visualized sensor with skin-like functionality is highly anticipated for practical application in health monitoring, human-machine interaction, and robotics. However, the existing methods are disadvantaged by their poor performance in sensitivity and spatial fidelity due to the low pixel density, brightness, or conformability. Herein, a novel self-powered skin-inspired visualized sensor (SP-SIVS) is developed by means of triboelectrification-induced electroluminescence (TIEL) technique. By integrating surface and bulk charge generation with a high-voltage corona charging treatment, a significant improvement is achieved in the brightness (by 10-fold) and spatial resolution (100 µm) of the SP-SIVS. Meanwhile, Young's modulus (94 kPa) is maintained at a level comparable to human skin, with tensile strength and elongation exceeding 1000 kPa and 1000%, respectively. Furthermore, SP-SIVS is verified as applicable to serve such purposes as wearable motion detection, fingerprint morphology imaging, and information interaction. This work contributes an innovative framework to the development of SP-SIVS with high-brightness, high-resolution, and sustainability, laying a foundation for its popularization as a novel interactive medium required for advanced photonic applications.