Ti O2 anatase nanoparticles were synthesized from a titanate for application in dye-sensitized solar cells. Structural analysis with x-ray absorption fine structure spectroscopy showed that this titanate-derived Ti O2 had a low density of oxygen-vacancy defects that would serve as the trap sites to impede electron transport. The transit time of the photogenerated electrons, measured by intensity modulated photocurrent spectroscopy, was significantly shorter in the titanate-derived Ti O2 than in the conventional sol-gel-derived Ti O2. This structure-intact feature of the titanate-derived Ti O2 has led to a high photocurrent for dye-sensitized solar cells.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)