Recent advancements in nanogenerator research have demonstrated significant potential in capturing mechanical energy from the environment and the human body, offering practical and sustainable power sources in diverse conditions. Over the past two decades, nanogenerator technologies leveraging piezoelectric, triboelectric, and other effects have rapidly evolved. Integrating nanogenerators with energy storage and functional devices has led to various micro/nano-systems for portable, wearable, implantable electronics, remote sensors, nanorobotics, intelligent MEMS/NEMS, and blue energy technology. The coupling between piezoelectric polarization and semiconductor properties, wherein strain manipulates electrons and photons (piezotronics and piezo-phototronics), presents unique opportunities to enhance semiconductor performance. Advances in piezotronics and piezo-phototronics have driven significant progress from fundamental studies of piezoelectricity and semiconductor properties in functional nanomaterials to developing smart electronics and optoelectronics applications, including sensing, human-machine interfacing, robotics, catalysis, energy, and healthcare. This symposium aims to encourage in-depth discussion and advancement of nanogenerators and piezotronics. Theoretical and experimental research into triboelectric, piezoelectric, and ferroelectric materials and devices and nanogenerators in self-powered devices and piezotronics are particularly welcome.

2D materials nanoscale tribology