Opto-electronic properties of titania nanotubes

With the hydrogen peroxide treatment of TiNT-as prepared, the PL intensity and selected area electron diffraction (SAED) patterns were notably increased, with the almost complete disappearance of the oxygen deficiency peaks in the Raman (279 cm−1) and PL (391 and 409 nm) peaks, indicating improvements in the optical properties and crystallinity, as well as the recovery of oxygen vacancies to the stoichiometric titania.