Presentation 2003/7/25
Preparation of TiO_2 Films with High Photocatalytic Activities by Gas Flow Sputtering
Kiyoshi ISHII, Kazunari KUROKAWA, Sachio YOSIHARA,
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Abstract(in English) Titanium dioxide (TiO_2) films with photocatalytic activities were prepared by reactive gas flow sputtering (GFS). GFS is a high-pressure sputtering at about 100 Pa enabling high deposition rates, and it has characteristics between PVD and CVD. A pure Ti tube was used as the target and the oxygen gas was supplied in front of the substrate. A stable sputter-deposition was carried out at a deposition rate of 80 nm/min. The crystal structure and morphology of TiO_2 films were found to strongly depend on the flow rate of oxygen gas. Polycrystalline films composed of rutile and anatase crystallites were deposited at a low flow rate of oxygen gas less than 2 sccm, where Ar flow rate was set at 300 sccm, and amorphous films were produced at the higher flow rates of oxygen gas. Polycrystalline films showed superior photocatalytic activities, while amorphous films were not photocatalytic.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) titanium dioxide film / photocatalytic film / sputtered TiO_2 film / gas flow sputtering / reactive gas flow sputtering
Paper # CPM2003-70
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Conference Information
Committee CPM
Conference Date 2003/7/25(1days)
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Registration To Component Parts and Materials (CPM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Preparation of TiO_2 Films with High Photocatalytic Activities by Gas Flow Sputtering
Sub Title (in English)
Keyword(1) titanium dioxide film
Keyword(2) photocatalytic film
Keyword(3) sputtered TiO_2 film
Keyword(4) gas flow sputtering
Keyword(5) reactive gas flow sputtering
1st Author's Name Kiyoshi ISHII
1st Author's Affiliation Faculty of Engineering, Utsunomiya University()
2nd Author's Name Kazunari KUROKAWA
2nd Author's Affiliation Faculty of Engineering, Utsunomiya University
3rd Author's Name Sachio YOSIHARA
3rd Author's Affiliation Graduate School of Engineering, Utsunomiya University
Date 2003/7/25
Paper # CPM2003-70
Volume (vol) vol.103
Number (no) 245
Page pp.pp.-
#Pages 6
Date of Issue