Since the formation of organisms from the earth, it mainly relies on the heat and light provided by the sun. Since ancient times, humans have also been able to dry the objects and use them as methods for preserving food, such as salt and sun-dried food. Under the reduction of fossil fuels, people intend to further develop solar energy. The use of solar energy has two methods of passively utilizing photothermal conversion and photoelectric conversion, namely solar thermal utilization and solar power generation. Solar energy in a broad sense is a source of many energy on Earth, such as wind energy, chemical energy, and potential energy of water.