Reactive Sputtering Deposition of Titanium Oxide Films By Means of An RF Triode Sputtering Source

1985 ◽  
Vol 60 ◽  
Author(s):  
Toru Yamashita ◽  
J. W. Robinson ◽  
H. Yamauchi

AbstractTiOx thin films were fabricated by means of a reactive sputtering technique in an rf triode sputtering-deposition unit. The deposition rate was studied in detail. A ‘phase diagram’ of TiOx was determined. XPS study showed the formation of a Ti02 surface layer on TiOx thin films. Oxygen was removed by the Ar+ bombardment on Ti02 to yield Ti203.

2007 ◽  
Vol 336-338 ◽  
pp. 1946-1948 ◽  
Author(s):  
X.L. Jia ◽  
Y. Wang ◽  
R.S. Xin ◽  
Quan Li Jia ◽  
Hai Jun Zhang

Rare-earth doped porous nanocrystalline TiO2 films were prepared via sol-gel method. The effect of preparation conditions on the properties of the resulting thin films, such as structure, surface topography and photocatalysis properties was analyzed. It indicated that appropriate doping of rare-earth element improves the photocatalysis ability of the thin titanium oxide films. The thin titanium oxide films have good photocatalysis properties in visible light region because of the red shift of energy level. It also revealed that uni-doped of cobalt is better than that of cobalt and lanthanum, while co-doping of cerium, cobalt and lanthanum may cause the best photocatalysis properties.


2012 ◽  
Vol 16 ◽  
pp. 113-118 ◽  
Author(s):  
Elena Manea ◽  
Cosmin Obreja ◽  
Munizer Purica ◽  
Adrian Dinescu ◽  
Florin Comanescu ◽  
...  

We report on an experimental study on transparent nanoporous titanium oxide films on glass substrates using an anodization process. Ti thin films of 50-90 nm have been deposited on glass substrate by dc sputtering (1.8210-3 Pa, 100 W) followed by a thermal treatment of 500°C for 30 min. in order to improve the adhesion to the glass substrate. Then an anodization process was applied in order to obtain TiO2 thin nanoporous layers using a cell consisted of three electrodes and aqueous electrolyte solution of 1% NH4F concentration, monoethyleneglycol and DI water. After anodization the samples were annealed at 450°C for 45 min using nitrogen gas. The layers have a nanoporous structure with pore dimensions in the range of 50-80 nm. FTIR and micro-Raman spectroscopy were used to identify the crystalline phase of the TiO2 layers. Raman scattering spectra clearly identify the anatase phase on the basis of Eg modes at ~ 146 cm-1 of the TiO2. The FTIR spectrum showed only the peak at 614 cm−1 which can be associated with the characteristic vibrational mode of TiO2 anatase. The optical properties of TiO2 thin films have been determined by ellipsometric measurements in the spectral range (0.2-0.8 μm) and a value of 2.41-2.45 was obtain for refractive index at 632 nm. Spectrophotometric measurements showed a transmittance over 70% and an optical band gap of 3.3-3.5 eV was determined.


2001 ◽  
Vol 40 (Part 2, No. 10A) ◽  
pp. L1054-L1057 ◽  
Author(s):  
Yo Ichikawa ◽  
Kentaro Setsune ◽  
Syun-ichiro Kawashima ◽  
Koichi Kugimiya

1997 ◽  
Vol 310 (1-2) ◽  
pp. 29-33 ◽  
Author(s):  
Feng Zhang ◽  
S. Jin ◽  
Yingjun Mao ◽  
Zhihong Zheng ◽  
Yu Chen ◽  
...  

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