Photocurrent Generation

Photocurrent generation occurs when light (such as sunlight) hits a material, usually a semiconductor, and excites electrons, causing them to become energized. This energy makes the electrons move, creating an electric current. In devices like solar cells, this process converts sunlight directly into electricity by separating the energized electrons from their atoms and guiding them through an external circuit. The efficiency of this process depends on the material’s properties and how well it can absorb light and transport the energized electrons, enabling the conversion of light energy into usable electrical power.