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Sunlight Absorbing Material Cu

Jun 24, 2019

Cu(In, Ga)Se2 is a kind of semiconductor material with excellent solar energy absorption performance and multiple gradient energy band gap (energy level difference between conduction band and valence band), which can expand the spectrum range of solar energy absorption and improve the photoelectric conversion efficiency. Based on this method, we can design a thin film solar cell whose photoelectric conversion efficiency is obviously higher than that of silicon thin film solar cell. The photoelectric conversion rate achieved is 18%