Patent ID: 6274805
Filing Date: 2001-08-14
Classification: H01L,Y02E,Y02P

Abstract:
A solar cell having a semiconductor layer of a chalcopyrite structure as a light absorption layer on the front surface of a substrate comprising a flexible film, which hasa thin film at a thickness of from 0.5 times to 5 times the thickness of the semiconductor layer of the chalcopyrite structure, having an average value of a linear expansion coefficient in the range of 30.degree. C. to 300.degree. C. of from 3.times.10.sup.-6 /.degree. C. to 20.times.10.sup.-6 /.degree. C., having a high corrosion resistance to an atmosphere of hydrogen selenide or an atmosphere of hydrogen sulfide, and formed to a substrate before the formation of the semiconductor layer of the chalcopyrite structure, as a reinforcing layer on the back surface of the substrate.