What materials are needed for thin film solar cells?

Thin film solar cells currently mainly include copper indium gallium selenide, cadmium telluride, gallium arsenide, etc. Copper indium gallium selenide is the most mature type of thin film battery. It can be made into glass substrate or plastic or stainless steel flexible substrate thin film battery. Currently, the main ones that can be mass-produced in China are. Zhongyi Xingye's globally integrated production lines and production lines in Germany and the United States acquired by Hanergy. The other concerns thin film cadmium telluride batteries. Several domestic companies are carrying out research in this field, but the production is not large and the production process is not environmentally friendly. Gallium arsenide thin film batteries have high efficiency andforeign research can achieve a return of more than 30%. In China, Zhongyi Xingye's production lines are already capable of mass production and are widely used in aerospace and other fields.