Classification of crystalline silicon solar cells

Solar energy is an inexhaustible renewable energy source for human beings. It is also a clean energy source and does not produce any environmental pollution. In the effective use of solar energy; solar energy photovoltaic utilization is the fastest growing in recent years, the most vigorous research areas, is one of the most popular items. Therefore, solar cells have been developed and developed. Solar cells are mainly based on semiconductor materials, and the principle is to use photoelectric materials to absorb light energy, photoelectric conversion reaction occurs, according to the different materials used.

classification

1 silicon solar cells;

2, inorganic salts such as gallium arsenide, III-V compounds, cadmium telluride, cadmium sulfide, copper indium selenide and other compounds as materials of the battery;

3. Solar cells prepared by functional polymer materials;

4, nanocrystalline silicon solar cells.

General requirements for solar cell materials

1, the forbidden band of semiconductor materials can not be too wide;

2, to have high photoelectric conversion efficiency;

3, the material itself does not cause pollution to the environment;

4. The material is convenient for industrial production and the material is stable.

Battery material

Based on the above considerations, silicon is the most ideal solar cell material, which is the main reason for solar cells using silicon material. But with the continuous development of new materials and the development of related technologies, solar cells based on other materials are becoming more and more attractive. In this paper, the types and current research status of solar cells are briefly reviewed, and the development and trend of solar cells are discussed.