Solar cells are made of semiconductor materials, such as silicon. When light strikes the semiconductor, it creates an electrical current. The amount of electricity generated depends on the size of the solar cell and the intensity of the light.
Solar cells are used in a variety of applications, including:
* Solar panels: Solar panels are made up of multiple solar cells connected together. They are used to generate electricity for homes, businesses, and other buildings.
* Solar farms: Solar farms are large collections of solar panels. They are used to generate electricity for the grid.
* Portable solar chargers: Portable solar chargers are used to charge batteries for electronic devices, such as phones, tablets, and laptops.
Solar energy is a clean and renewable source of energy. It does not produce any emissions, so it does not contribute to climate change. Solar energy is also becoming increasingly affordable, making it a more attractive option for generating electricity.