Tolerance to electron beams of TiO2 film photocatalyst

In orbit, contamination outgassed from spacecraft materials has been reported to degrade optical systems such as CCD cameras, lenses, mirrors, and optical filters mounted on a spacecraft. We focus on TiO2 photocatalyst to solve this contamination problem. TiO2 has the potential to decompose contamin...

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Bibliographic Details
Published in:Thin solid films 2019-09, Vol.686, p.137421, Article 137421
Main Authors: Shimosako, Naoki, Yoshino, Kosuke, Shimazaki, Kazunori, Miyazaki, Eiji, Sakama, Hiroshi
Format: Article
Language:English
Subjects:
Electron beam
Photocatalyst
Space radiation
Titanium dioxide
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Summary:In orbit, contamination outgassed from spacecraft materials has been reported to degrade optical systems such as CCD cameras, lenses, mirrors, and optical filters mounted on a spacecraft. We focus on TiO2 photocatalyst to solve this contamination problem. TiO2 has the potential to decompose contaminants and suppress the deterioration of optical systems in orbit. However, the resistance of TiO2 itself to electrically charged particles, i.e., electrons in space, has not been clarified. The TiO2 films were irradiated with an electron beam (EB) with an energy of
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2019.137421