Fig. 1: Structure design of energy ball and energy band diagram of the shadow-effect.
From: Shadow enhanced self-charging power system for wave and solar energy harvesting from the ocean
a Schematic of the energy ball (diameter is 8 cm, F-SCs is short for fiber-supercapacitor) harvesting both solar energy and wave energy from ocean. Schematic illustration showing the configuration of the shadow-tribo-effect nanogenerator based self-charging power system: b bottom view and c front view. d Representative energy band diagram of Au/n-Si system.
