| 초록 |
Anodized TiO2 nanotubes (TNTs) on Ti foil are most frequently employed as photoanodes due to high electron collection efficiency, but opacity of the Ti substrate, it requires back-side illuminations which decreased light harvesting. It is remained challenge to produce TNT on transparent glass with good morphology for front-side illuminations. In this study, we describe a simple method to produce both open-ended TNTs membrane. This novel process includes selective etching process to yield aligned both open-ended TNTs that could be easily transferred to an FTO substrate for the fabrication of front-illuminated dye sensitized solar cells (DSCs). The TNT-DSCs yielded a higher PCE (8.6%) than was observed from TiO2 nanoparticle-based DSCs (7.3%), for comparable film thicknesses of 16 m, despite the use of 20% less dye. |
