The solar cell and its preparation method

  title={The solar cell and its preparation method},
The solar cell of the present invention comprises a back electrode layer on a support substrate; the back electrode layer divided into a plurality of first through holes of the back electrode; a first contact pattern on the back electrode layer; forming the a light absorbing layer on the back electrode layer, the light absorbing layer comprises a second contact pattern on the first contact pattern; and a front electrode layer on the light absorbing layer.