Silicon Wafer for solar application is a circular disk of high purity silicon material.

It is also called as solar wafer. It's a fundamental of photovoltaic power generation, and production thereof requires high technology.

Photovoltaic power generation system converts sunlight energy directly to electrical energy.

Solar battery includes silicon semiconductor, compound semiconductor, and organic compound group. Each group includes crystal type battery such as mono-crystal solar battery and multi-crystal solar battery, non-crystal type battery such as amorphous solar battery, complex type battery, 2 elements compound battery, and 3 elements compound battery.