Thin-film photovoltaic cell with high photoelectric conversion rate and preparation process thereof

The invention discloses a thin-film photovoltaic cell with high photoelectric conversion rate and a preparation process thereof. The thin-film photovoltaic cell comprises a transparent substrate and photovoltaic units arranged on the transparent substrate in a mode of facing towards a display module, wherein the photovoltaic unit arranged in a display area comprises a transparent front electrode arranged on the transparent substrate, a light absorption layer arranged on the transparent front electrode and a transparent back electrode arranged on the light absorption layer; and the photovoltaicunit arranged in a non-display area comprises a transparent front electrode arranged on the transparent substrate, a light absorption layer arranged on the transparent front electrode and a metal back electrode arranged on the light absorption layer. By implementing the invention, the front electrode and the back electrode corresponding to the display area of the display module are arranged to betransparent, so that vari