PREPARATION METHOD OF TITANIUM DIOXIDE POWDER DOPED WITH ERBIUM ION AND YTTERBIUM ION AND ITS APPLICATION TO DYE-SENSITIZED SOLAR CELL AS SCATTERING LAYER

摘要

PURPOSE: A method for manufacturing a titanium dioxide powder doped with Er^3+ and Yb^3+, and a dye-sensitized solar cell using the titanium dioxide powder are provided to improve scattering, thereby enhancing the efficiency of a dye-sensitized solar cell. CONSTITUTION: A method for manufacturing a titanium dioxide powder doped with Er^3+ and Yb^3+ comprises the steps of (S1) mixing titanium isopropoxide, erbium (III) nitrate (Er(NO3)3), ytterbium (III) nitrate (Yb(NO3)3) and carbon black in a solvent to prepare a mixture; (S2) forming a gel with adding water to the mixture; (S3) drying the gel to prepare a precursor; and (S4) heat treating the precursor. The solvent is a mixture solvent comprising acetic acid and ethanol.