Introduction to Solar Cells

With the development of the times and the shortage of energy, people began to look for clean energy that will not be exhausted. The solar cell industry came into being. According to its difference, people divide solar cells into three generations.

The first-generation solar cells are silicon-based solar cells with high stability and high conversion efficiency, which mainly include monocrystalline silicon and polycrystalline silicon solar cells. On April 25, 1954, Bell Labs developed the first silicon-based solar panel with a conversion efficiency of 6%, which was the beginning of the silicon-based solar industry. First-generation solar cells require too many materials and are expensive.

The second-generation solar cells are thin-film solar cells represented by CdTe, CZTS, CIGS, and amorphous silicon, which occupy about 10% of the global market share, and are characterized by less material usage and lower prices.

As a typical representative of third-generation solar cells, perovskite solar cells are the most promising solar cells after polycrystalline silicon solar cells, monocrystalline silicon solar cells, and thin film solar cells. They have the characteristics of low cost and high conversion efficiency, but Such solar cells are still in the laboratory research stage.