 Photoelectrochemical process

The photoelectrochemical (PEC) process refers to an electrochemical reaction that is driven by light, typically sunlight. This technology harnesses solar energy to facilitate chemical reactions, often for applications like water splitting to produce hydrogen or carbon dioxide reduction. Key components and principles of the PEC process include: 1. **Photocatalyst**: This is a material, often a semiconductor, that absorbs light and generates electron-hole pairs when illuminated.