Power generation efficiency: The highest photoelectric conversion efficiency of monocrystalline silicon solar energy reaches 24%, solar panel which is the highest photoelectric conversion efficiency of all types of solar cells. However, solar panel the production cost of monocrystalline silicon solar cells is so great that it has not been widely and widely used in large numbers. In terms of manufacturing cost, solar panel polycrystalline silicon solar cells are cheaper than monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells is much lower. In addition, solar panelthe service life of polycrystalline silicon solar cells is shorter than that of monocrystalline silicon solar cells.Therefore, solar panel in terms of cost performance, monocrystalline silicon solar cells are slightly better.
Researchers have found that some compound semiconductor materials are suitable for solar photovoltaic conversion films. For example, CdS, CdTe;solar panel III-V compound semiconductors: GaAs, AIPInP, etc.solar panel thin-film solar cells made of these semiconductors show good photoelectric conversion efficiency. Multi-element semiconductor materials with gradient band gaps can expand the solar energy absorption spectrum, solar panel thereby increasing the photoelectric conversion efficiency. A large number of practical applications of thin film solar cells present broad prospects. Among these multi-element semiconductor materials, solar panel Cu(In, Ga)Se2 is an excellent solar light absorbing material. Based on it, solar panel thin-film solar cells with significantly higher photoelectric conversion efficiency than silicon can be designed, solar panel and the achievable photoelectric conversion rate is 18%.