|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XVI
||A Colorful Titanium Foil as a Photoanode Substrate for Dye-sensitized Solar Cells under Back-side Illumination
||Chih-Hsiang Huang, Chih-Ming Chen
|On-Site Speaker (Planned)
Titanium (Ti) foil is widely employed as a flexible photo-anode substrate in dye-sensitized solar cells (DSSCs). To increase the specific surface area of the Ti substrate, the Ti surface was etched to form a porous titanium dioxide (TiO<SUB>2</SUB>) layer through anodizing oxidation technology (AOT). The surface TiO<SUB>2</SUB> film showed a high color variety with various AOT voltage which was attributable to the light refraction and scattering capability of the porous TiO<SUB>2</SUB> structures. With the porous TiO<SUB>2</SUB> structure, the electrical contact between screen-printed TiO<SUB>2</SUB> nanoparticle film and the Ti substrate was improved. The porous TiO<SUB>2</SUB> structure also suppressed the charge back-reaction on the photo-anode substrate based on the impedance analysis of electrochemical impedance spectroscopy (EIS). A higher power conversion efficiency (PCE) of DSSC based on the porous TiO<SUB>2</SUB> structure was achieved and the contribution was mainly due to increased short-circuit current density (J<SUB>SC</SUB>).
||Planned: Supplemental Proceedings volume