Sol−Gel Tungsten Oxide/Titanium Oxide Multilayer Nanoheterostructured Thin Films:  Structural and Photoelectrochemical Properties

2007 ◽  
Vol 111 (50) ◽  
pp. 18479-18492 ◽  
Author(s):  
Vittorio Luca ◽  
Mark G. Blackford ◽  
Kim S. Finnie ◽  
Peter J. Evans ◽  
Michael James ◽  
...  
Keyword(s):  
Thin Films ◽  
Tungsten Oxide ◽  
Titanium Oxide ◽  
Sol Gel ◽  
Photoelectrochemical Properties

Electrochromic performance of WO3 thin films with solvent-free viscous electrolytes based on polyethylene glycol-titanium oxide nanocomposites

2011 ◽  
Vol 1312 ◽  
Author(s):  
Narcizo Mendoza ◽  
Liliana Hechavarría ◽  
Francisco Paraguay-Delgado ◽  
Hailin Hu
Keyword(s):  
Thin Films ◽  
Polyethylene Glycol ◽  
Tungsten Oxide ◽  
Titanium Oxide ◽  
Lithium Salt ◽  
Color Change ◽  
Sol Gel ◽  
Visible Region ◽  
Oxide Compound ◽  
Polymeric Electrolytes

ABSTRACTPolymeric nanocomposites of polyethylene glycol (PEG) with titanium oxide compound, PEG-Ti, have been prepared by sol-gel method from liquid PEG and titanium isopropoxide in acidic medium. Lithium salt (LiX) has been added into PEG-Ti to form PEG-Ti-LiX polymeric electrolytes. Electrochromic devices based on tungsten oxide thin films and PEG-Ti-LiX electrolyte may show excellent optical transmittance transient, however it depends on the type of lithium salt used during the sol-gel process. With LiI, the color change speed of the devices is very fast but they show a yellow color at bleaching state. The use of LiClO4 makes the devices totally transparent in visible region but the optical contrast is small. Possible molecular structure model of these polymeric electrolytes have been analyzed to explain the relation between electrochromic performance of tungsten oxide and electrolyte chemical composition.

scholarly journals Spectrum Investigations of Chloro-Alkoxide Sol-Gel Nanostructured Tungsten Oxide Thin Films

2009 ◽  
Vol 25 (02) ◽  
pp. 267-272
Author(s):  
YUAN Jia-Guo ◽  
◽  
ZHANG Yu-Zhi ◽  
LE Jun ◽  
SONG Li-Xin ◽  
...  
Keyword(s):  
Thin Films ◽  
Tungsten Oxide ◽  
Sol Gel ◽  
Oxide Thin Films ◽  
Tungsten Oxide Thin Films

Preparation of Titanium Oxide and Metal Titanates as Powders, Thin Films, and Microspheres by Novel Inorganic Sol-Gel Process

2005 ◽  
Vol 900 ◽  
Author(s):  
A. Deptuła ◽  
Kenneth C Goretta ◽  
Tadeusz Olczak ◽  
Wieslawa Lada ◽  
Andrzej G. Chmielewski ◽  
...  
Keyword(s):  
Thin Films ◽  
Ascorbic Acid ◽  
Nitric Acid ◽  
Titanium Oxide ◽  
Sol Gel ◽  
Solid State Reactions ◽  
X Ray Diffraction ◽  
Metal Hydroxides ◽  
X Ray ◽  
Sol Gel Process

ABSTRACTTitanium oxide and titanates based on Ba, Sr and Ca were prepared from commercial solutions of TiCl4 and HNO3. The main preparation steps for the sols consisted of elimination of chloride anions by distillation with nitric acid and addition of metal hydroxides for the titanates. Resulting sols were gelled and used to (1) prepare irregularly shaped powders by evaporation; (2) produce by a dipping technique thin films on glass, Ag, or Ti substrates; and (3) produce spherical powders (diameters <100 μm) by solvent extraction. Results of thermal and X-ray-diffraction analyses indicated that the temperatures required to form the various compounds were lower than those necessary to form the compounds by conventional solid-state reactions and comparable to those required with use of organometallic based sol-gel methods. Temperatures of formation could be further reduced by addition of ascorbic acid to the sols.

scholarly journals Characterization of Sol-gel Derived Ti-doped Tungsten Oxide Electrochromic Thin Films

2011 ◽  
Vol 9 ◽  
pp. 446-451 ◽  
Author(s):  
K. Paipitak ◽  
C. Kahattha ◽  
W. Techitdheera ◽  
S. Porntheeraphat ◽  
W. Pecharapa
Keyword(s):  
Thin Films ◽  
Tungsten Oxide ◽  
Sol Gel

Structure and infrared spectra of sol—gel derived tungsten oxide thin films

1993 ◽  
Vol 297 ◽  
pp. 393-400 ◽  
Author(s):  
S. Badilescu ◽  
Nguyen Minh-Ha ◽  
G. Bader ◽  
P.V. Ashrit ◽  
Fernand E. Girouard ◽  
...  
Keyword(s):  
Thin Films ◽  
Tungsten Oxide ◽  
Infrared Spectra ◽  
Sol Gel ◽  
Oxide Thin Films ◽  
Tungsten Oxide Thin Films
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