Researchers develop fast-charging and energy-dense light-charged supercapacitor for self-powered devices

https://techxplore.com/news/2024-09-supercapacitor-powered-devices.html

"zinc oxide nanorod electrodes grown directly on transparent fluorine-doped tin oxide, allowing light to fall on the optically active nanorods, charging micron-scale supercapacitor... 2 electrolytes, liquid/ semi-solid gel, conducting medium between electrodes... shining UV (IR, visible light using tweeks) caused several times higher capacitance, further increased with increasing voltage due to high porosity electrodes... energy stored increased with faster charging... streetlights, self-powered sensors. cell phones"