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

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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