What are thin-film solar cells?
Thin-film solar cells are a new type of photovoltaic device for alleviating the energy crisis. Thin-film solar cells can be manufactured using various inexpensive materials such as ceramics, graphite, and metal sheets as substrates. The thickness of the thin film that can generate voltage is only a few μm, and the highest conversion efficiency currently can reach 13%.
Besides being planar, thin-film solar cells are also flexible enough to be made into non-planar structures, which broadens their applications. They can be integrated with buildings or become part of a building structure, making them very widely used.
What are the characteristics of thin-film solar cells?
Currently, commercially available crystalline silicon solar cells have the highest photoelectric conversion efficiency, but their high cost is limited by material purity and fabrication processes, making it difficult to further improve conversion efficiency or reduce costs. Thin-film solar cells, requiring only a few μm in thickness, can achieve photoelectric conversion, making them an ideal material for reducing costs and improving photon recycling.
1. Less power loss for the same shaded area (better power generation under low light conditions)
2. Less power loss compared to wafer solar cells under the same illuminance.
3. It has a better power temperature coefficient.
4. Better optical transmission
5. High cumulative power generation
6. Only a small amount of silicon raw material is needed.
7. No internal circuit short-circuit issues (the interconnection is already built into the series battery manufacturing process).
8. Thinner than wafer solar cells
