Development of visible-light activated titanium dioxide films with femtosecond laser

N. Horiguchi; M. Tsukamoto; M. Yoshida; T. Shinonaga; M. Takahashi; M. Fujita; N. Abe

doi:10.1117/12.2005724

15 March 2013 Development of visible-light activated titanium dioxide films with femtosecond laser

N. Horiguchi, M. Tsukamoto, M. Yoshida, T. Shinonaga, M. Takahashi, M. Fujita, N. Abe

Author Affiliations +

Proceedings Volume 8609, Synthesis and Photonics of Nanoscale Materials X; 86090D (2013) https://doi.org/10.1117/12.2005724
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

Titanium dioxide (TiO₂) has a variety of functions, but cannot be activated by visible-light illumination. It is importance to extend the activity of TiO₂ into the visible-light, which comprises the larger portion of the room light. Therefore, the visible-light activated TiO₂ is required. We developed it with the femtosecond laser irradiation. The TiO₂ films irradiated with femtosecond laser were darkened without changing topography of the TiO₂ film surface. In the visible-light photocataltic function measurements, the TiO₂ films were evaluated with the acetaldehyde decomposition test. The concentration of acetaldehyde was decreased to over time. This result indicated that visible-light activated photocatalyst function of TiO₂ films were generated by femtosecond laser irradiation.

Citation Download Citation

N. Horiguchi, M. Tsukamoto, M. Yoshida, T. Shinonaga, M. Takahashi, M. Fujita, and N. Abe "Development of visible-light activated titanium dioxide films with femtosecond laser", Proc. SPIE 8609, Synthesis and Photonics of Nanoscale Materials X, 86090D (15 March 2013); https://doi.org/10.1117/12.2005724

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