Active Micro‐Actuators for Optical Modulation Based on a Planar Sliding Triboelectric Nanogenerator

Based on a triboelectric nanogenerator (TENG), the first active micro-actuator for optical modulation driven by mechanical energy without external power or mechanical joint is presented. This demonstrates the enormous potential of TENGs for independent and sustainable self-powered micro/nano electromechanical systems, and opens up new ­applications of TENGs in triboelectric-voltage-controlled devices.