CuO could also be good candidate in solar energy conversion due to many properties
CuO could also be a good candidate in solar energy conversion due to many properties: high absorption coefficient, narrow bandgap in the visible region, which is expected to give high conversion efficiency, being nontoxic, stable, good electrical conductance, simple manufacturing process, and so on. A more direct way to convert solar energy to electricity is to use CuO as an absorber in solar cells. The efficiency of solar cells based on CuO is far lower than that of leading chalcogenide systems