| Title |
Characteristics of TiO2 Nanorod Fabricated by Hydrothermal Synthesis and the Properties of Dye-sensitized Solar Cells using TiO2 Nanorod |
| Authors |
김필중(Phil-Jung Kim) ; 박용섭(Yong-Seob Park) |
| DOI |
https://doi.org/10.5573/ieie.2023.60.11.38 |
| Keywords |
TiO2 nanorod; Dye-sensitized solar cells; Hydrochloric acid; Absorption; Solar conversion efficiency |
| Abstract |
The TiO2 nanorod as the oxide semiconductor was synthesized using hydrothermal synthesis method, and the TiO2 nanorod was grown while changing the amount of hydrochloric (HCl) acid from 6[ml] to 10[ml] as a chemical additive. Cell characteristics were evaluated using TiO2 nanorods as photo-electrodes of dye-sensitized solar cells. As a result, it was confirmed that increasing the amount of hydrochloric acid changed the diameter, length, and shape of the grown TiO2 nanorods. TiO2 nanorods grown in a low hydrochloric acid amount of 6[ml] were synthesized in a thin film form rather than a rod form. The length of the nanorods increased and contributed to the change in diameter as the amount of hydrochloric acid increased, Increasing the amount of hydrochloric acid increased the length of the nanorods and decreased the diameter of the nanorods. However, large amounts of hydrochloric acid tended to clump together the grown nanorods. As a result, it can be seen that the amount of hydrochloric acid is a very important variable when changing the diameter and length of TiO2 nanorods. This is because the diameter of the nanorods decreased, the length of the nanorods increased, and the surface area of the rods widened, increasing the amount of dye adsorption. This can be expected to enable more efficient DSSC implementation. |