A. Aoki et G. Nogami, FABRICATION OF ANATASE THIN-FILMS FROM PEROXO-POLYTITANIC ACID BY SPRAY-PYROLYSIS, Journal of the Electrochemical Society, 143(9), 1996, pp. 191-193
The anatase structure of titanium dioxide (TiO2) shows high catalytic
activity as a semiconductor photocatalyst. Anatase thin films were suc
cessfully fabricated by spray pyrolysis of peroxo-polytitanic acid. Fi
lms have an indirect bandgap energy of 3.08 eV and a direct bandgap en
ergy of 3.65 eV. The porosity of the films increased with increasing s
ubstrate temperature.