| 초록 |
In this study, TiO2 particles having 300~400nm sizes were prepared for using a light scattering layer in Dye-sensitized solar cells. TiO2 particles of required size have been taken by controlling amount of water without heat treatment or hydrothermal process in sol-gel process. TTIP(Titanium tetra isopropoxide) was used as a precusor which is synthesized with 2-propanol and acetic acid. After TTIP, 2-propanol and acetic acid were mixed in proportion of 5:1:5 respectively, stirred for 60min at 60℃. The aqueous solution of nitric acid having pH 1.5 was used to control sizes and dispersity that stirred for 360min at 80℃. TiO2 crystalline for using a light scattering layer was obtained which was analyzed by XRD, SEM. |
