| Title |
Synthesis of Nanoprous TiO_2 Materials for Dye-sensitized Solar Cells Application Using Sol-gel Combustion Method |
| Authors |
한치환(Han, Chi-Hwan) ; 성열문(Sung, Youl-Moon) |
| Keywords |
Dye-sensitized Solar Cells ; Acetylene black ; TiO_2 ; Photovoltaic efficiency ; Sol-gel combustion method |
| Abstract |
Nano-porous TiO_2 powder was fabricated using Acetylene black, applied photo voltaic device based on the Dye-sensitized Solar Cells (DSCs) was investigated experimentally. TiO_2-powder was fabricated using Ti-isopropoxide and 2-propanol by sol-gel combustion method. For cases of variable Acetylene black, characteristic of porosity, size of particle and crystallite of obtained TiO_2 nano-powder was investigated. The photovoltaic efficiency of the prepared DSCs was measured using TiO_2 film which prepared on each different heat treatment temperature(400°C~700°C) with paste of TiO_2 powder. The porosity and size of particle of TiO_2 powder made with Acetylene black 0.4g was influenced significantly effect to DSCs characteristic. Heat treatment at 500°C makes the better photovoltaic efficiency which 5.02%(J_{sc}=11.79mA/cm^2, V_{oc}=0.73V, ff=0.58). The sol-gel combustion method was useful to DSCs fabrication. |