Adsorption Equilibrium and Kinetics ofGardenia BlueonTiO2Photoelectrode for Dye-Sensitized Solar Cells

Tae-Young Kim, Kyung-Hee Park, Jae-Wook Lee, Shin Han, Sung-Young Cho
2014 International Journal of Photoenergy  
Nanostructured porous TiO2paste was deposited on the FTO conductive glass using squeeze printing technique in order to obtain a TiO2thin film with a thickness of 10 μm and an area of 4 cm2.Gardenia blue (GB)extracted fromGardeniajasminodeElliswas employed as the natural dye for a dye-sensitized solar cell (DSSC). Adsorption studies indicated that the maximum adsorption capacity of GB on the surface of TiO2thin film was approximately 417 mgGB/g TiO2photoelectrode. The commercial and natural
more » ... al and natural dyes, N-719 andGB, respectively, were employed to measure the adsorption kinetic data, which were analyzed by pseudo-first-order and pseudo-second-order models. The energy conversion efficiency of the TiO2electrode with successive adsorptions ofGBdye was about 0.2%.
doi:10.1155/2014/429312 fatcat:ar42shcq3jgnjiobfn2i3c6724