|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 (TiO2) layer through anodizing oxidation technology (AOT). The surface TiO2 film showed a high color variety with various AOT voltage which was attributable to the light refraction and scattering capability of the porous TiO2 structures. With the porous TiO2 structure, the electrical contact between screen-printed TiO2 nanoparticle film and the Ti substrate was improved. The porous TiO2 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 TiO2 structure was achieved and the contribution was mainly due to increased short-circuit current density (JSC).
||Planned: Supplemental Proceedings volume