DSSC-CIGS TANDEM SOLAR CELL HAVING IMPROVED TRANSMITTANCE

摘要

PURPOSE: A tandem solar cell with an improved transmittance is provided to improve efficiency by obtaining an optical current with a low thickness and reducing a light scattering effect. CONSTITUTION: A tandem solar cell is formed by serially combining a dye-sensitized solar cell with a copper indium gallium selenium solar cell. A light absorbing layer of the dye-sensitized solar cell includes TiO2 particles. The diameter of the TiO2 particle is 5 to 15 nm. An antireflection layer is formed on an interface between the dye-sensitized solar cell and the copper indium gallium selenium solar cell. The copper indium gallium selenium solar cell includes a plurality of metal electrode layers, a copper indium gallium selenium absorbing layer, and a metal oxide layer.