Methawee Nukunudompanich, Surawut Chuangchote, Jatuporn Wootthikanokkhan, Yoshikazu Suzuki, TiO2 Nanorods Prepared from Anodic Aluminum Oxide Template and their Applications in Dye-Sensitized Solar Cells, ILCPA Volume 46, International Letters of Chemistry, Physics and Astronomy (Volume 46)
https://www.scipress.com/ILCPA.46.30
Abstract:
    Anodic aluminum oxide (AAO) was used as a template coupled with liquid process for synthesis of TiO<sub>2</sub> nanorods. Immersion setting (IS) was carried out to insert a TiO<sub>2</sub> precursor solution into AAO pore. With the calcination and NaOH treatment to remove AAO, SEM characterization revealed that TiO<sub>2</sub> nanorods with diameter around 100-200 nm were successfully fabricated from AAO commercial templates. The synthesized nanorods mixed with commercial TiO<sub>2</sub> nanoparticles (P-25) with a mixing ratio of 5:95 (by mass) were used as an electrode in a dye-sensitized solar cell (DSSC), The photoelectrodes made with nanorods showed a better performance than the cells used of only pristine TiO<sub>2</sub> nanoparticles. The results from current density-voltage (<i>J</i>-<i>V</i>) characteristics of DSSCs showed that short-circuit current density (<i>J</i><sub>SC</sub>), open-circuit voltage (<i>V</i><sub>OC</sub>), fill factor (<i>FF</i>), and power conversion efficiency (<i>PCE</i>) are 11.78 mA/cm<sup>2</sup>, 0.72 V, 0.55, and 4.68%, respectively. Due to the effects of one-dimensional (1-D) nanostructure, the electron expressway concept was achieved in this research.
Keywords:
    Anodic Aluminum Oxide (AAO), Dye-Sensitized Solar Cell (DSC), TiO<sub>2</sub> Nanorod