The invention discloses an inversed organic thin-film
solar cell and a manufacturing method of the inversed organic thin-film
solar cell. The inversed organic thin-film
solar cell structurally and sequentially comprises a substrate, a transparent electric conduction
cathode ITO, a
cathode buffer layer, an optical activity layer, an
anode buffer layer and a metallic
cathode from bottom top top. Transparent electric conduction nano-particles are added in the
anode buffer layer. The manufacturing method includes the steps of forming a substrate body through the substrate and the transparent electric conduction cathode ITO, washing and
drying the base plate, manufacturing the cathode buffer layer on the surface of the transparent electric conduction cathode ITO, manufacturing and baking the optical activity layer on the surface of the cathode buffer layer, manufacturing the
anode buffer layer on the surface of the optical activity layer, conducting annealing on the substrate body, and plating the anode buffer layer with the metallic cathode in an
evaporation mode.
High conductivity and
high reflectivity of the transparent electric conduction nano-particles are used, the
electron transmission rate and the
light reflection rate of a traditional anode buffer layer are strengthened, the absorptivity of the optical activity layer to
sunlight is improved, the light
current density and the carrier transmission efficiency of the organic thin-film solar
cell are accordingly improved, the series resistance of the
cell is reduced, and the
photoelectric conversion efficiency of a device is improved.