What Is a Thin Film Battery?
As the name suggests, a thin film battery is a layer of thin film made into a solar cell, which uses very little silicon, which is easier to reduce costs. At the same time, it is both a high-efficiency energy product and a new type of building material, which is easier to integrate perfectly with buildings. In the context of the continued tightness of silicon raw materials in the international market, thin-film solar cells have become a new trend and a new hot spot in the development of the international photovoltaic market. There are three main types of thin-film batteries that can be industrially produced on a large scale: silicon-based thin-film solar cells, copper-indium-gallium-selenium thin-film solar cells (CIGS), and cadmium telluride thin-film solar cells (CdTe).
- Thin film battery is a technology that uses thin layers of materials, using electronic semiconductors and optical principles. Considering cost-effectiveness, thin-film photovoltaic cells are adopted and used in the second and third generation
- The principle of thin-film battery power generation is similar to that of crystalline silicon. When sunlight is irradiated onto the battery, the battery absorbs light energy to generate photo-generated electron-hole pairs. Under the action of the built-in electric field of the battery, the photo-generated electrons and holes are separated and the holes drift. To the P side, the electrons drift to the N side, forming a photo-generated electromotive force,
- 1. Small power loss under the same shielding area (good power generation in low light)
- 2. Less power is lost than wafer solar cells under the same illumination
- 3.has better power temperature coefficient
- 4. Better
- Silicon based thin film solar cells, copper indium gallium selenium thin film solar cells (CIGS), cadmium telluride thin film solar cells (CdTe) [1] .