## Photo-induced hydrophilic Oxygen flow ratio Self cleaning TiO 2 thin films were deposited by reactive radio frequency magnetron sputtering of Ti target at low working pressure (1 mTorr) and various O 2 and Ar flow ratios (R O2 = O 2 /(O 2 + Ar)). Properties of TiO 2 films were measured by field
Structure and photo-induced features of TiO2 thin films prepared by RF magnetron sputtering
β Scribed by Xiu-Tian Zhao; Kenji Sakka; Naoto Kihara; Yasuyuki Takada; Makoto Arita; Masataka Masuda
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 118 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0026-2692
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β¦ Synopsis
TiO 2 thin films were deposited on stainless steel substrates by radio frequency (RF) magnetron sputtering. The process conditions, including RF power, oxygen partial pressure, and temperature of substrate, were varied systematically. The deposited titanium dioxide films consisted of polycrystalline structure with the mixture of anatase and rutile. The average particle diameter of films changed from dozens of nanometers to hundreds of nanometers. It was found that the conditions, 200 W RF power, 90% oxygen partial pressure, and 673 K temperature of substrate, were optimal to deposit a TiO 2 thin film with good photocatalytic activity and photo-induced hydrophilicity that will be attributable to their higher content of anatase.
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