“…Due to the high absorption coefficient, only 1-2 µm thickness of CdTe film is required to absorb most of the photons in the solar spectrum on the earth. Up to now, a variety of methods such as evaporation, close spaced sublimation, electrodeposition, sputtering, MOCVD, screen printing, and spray pyrolysis have been reported for the formation of polycrystalline CdTe thin film [2][3][4][5][6][7][8]. Those technologies, however, cause the high production costs due to their requirements of the expensive vacuum systems and high temperature conditions.…”