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

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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 TiO 2 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.

Original languageEnglish
Title of host publicationSynthesis and Photonics of Nanoscale Materials X
Publication statusPublished - 2013
Externally publishedYes
EventSynthesis and Photonics of Nanoscale Materials X - San Francisco, CA, United States
Duration: Feb 3 2013Feb 5 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherSynthesis and Photonics of Nanoscale Materials X
Country/TerritoryUnited States
CitySan Francisco, CA


  • Femtosecond laser
  • TiO
  • Titanium dioxide
  • photocatalytic activity
  • visible light

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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