Crystallization behavior of SiO2−TiO2 sol-gel thin films

1997 ◽  
Vol 8 (1-3) ◽  
pp. 409-413 ◽  
Author(s):  
Rui M. Almeida ◽  
Eva E. Christensen
Keyword(s):  
Thin Films ◽  
Crystallization Behavior ◽  
Sol Gel ◽  
Tio2 Sol

Microstructure and Crystallization Behavior of Sol-Gel Prepared BaTiO3 Thin Films

1994 ◽  
Vol 346 ◽  
Author(s):  
M.C. Gust ◽  
L.A. Momoda ◽  
M.L. Mecartney
Keyword(s):  
Thin Films ◽  
Crystallization Behavior ◽  
Sol Gel ◽  
Heat Treating ◽  
Furnace Annealing ◽  
Si Substrates ◽  
Fine Grain ◽  
Conventional Furnace ◽  
Final Microstructure ◽  
Hydrolysis Conditions

ABSTRACTThin films of BaTiO3 were prepared by the sol-gel route using barium titanium methoxypropoxide in methoxypropanol. Sols with water of hydrolysis varying between h=0 and h=2 were spun onto (100) Si and Ge coated (100) Si substrates. XRD and analytical TEM were used to study the microstructure and crystallization behavior of these films. Polycrystalline BaTiO3 was obtained by heat treating the films at temperatures between 600 and 750°C using either conventional furnace annealing or rapid thermal annealing. Films prepared from sols having the highest water content tended to crystallize first. The BaTiO3 thin films exhibited a fine grain size on the order of 25–50 nm. No preferred orientation was observed. The effects of the hydrolysis conditions of the sol, the type of heat treatment, and the choice of substrate on the final microstructure of the films are discussed.

Rapid Thermal Processing of Ferroelectric Thin Films

1991 ◽  
Vol 224 ◽  
Author(s):  
Zheng Wu ◽  
Roberto Pascual ◽  
C.V.R. Vasant Kumar ◽  
David Amd ◽  
Michael Sayer
Keyword(s):  
Thin Films ◽  
Lead Zirconate Titanate ◽  
Thermal Processing ◽  
Crystallization Behavior ◽  
Sol Gel ◽  
Rapid Thermal Processing ◽  
Lead Zirconate ◽  
Dielectric Constants ◽  
Heating Rates ◽  
Pzt Films

AbstractThe preparation of ferroelectric lead zirconate titanate (PZT) thin films by rapid thermal processing (RTP) is reported. The films were deposited by chemical sol gel and physical sputter techniques. The heating rate of RTP was found to have significant influence on the crystallization behavior. Faster heating rates lead to lowering of the crystallization temperature and reduction of grain size. PZT films were obtained with dielectric constants ~ 1000, remanent polarizations between 20 and 30μC/cm2, coercive fields 20 to 60kV/cm, and no significant fatigue for 109 to 1010 stressing cycles.

scholarly journals Structural evolution and hydrogen sulfide sensing properties of NiTiO3–TiO2 sol–gel thin films containing Au nanoparticles

2011 ◽  
Vol 176 (9) ◽  
pp. 716-722 ◽  
Author(s):  
Enrico Della Gaspera ◽  
Mattia Pujatti ◽  
Massimo Guglielmi ◽  
Michael L. Post ◽  
Alessandro Martucci
Keyword(s):  
Thin Films ◽  
Hydrogen Sulfide ◽  
Au Nanoparticles ◽  
Sol Gel ◽  
Structural Evolution ◽  
Sensing Properties ◽  
Tio2 Sol

Effect of Solvent on the Crystallization Behavior of Sr 0.5 Ba 0.5 Nb 2 O 6 Thin Films Prepared by a Modified Sol-Gel Process

2002 ◽  
Vol 270 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Dong Gun Lee ◽  
Hae Wook Lee ◽  
Hee Young Lee ◽  
Jeong-Joo Kim ◽  
Sang-Hee Cho
Keyword(s):  
Thin Films ◽  
Crystallization Behavior ◽  
Sol Gel ◽  
Effect Of Solvent ◽  
Sol Gel Process

Understanding Crystallization of Anatase into Binary SiO2/TiO2 Sol−Gel Optical Thin Films: An in Situ Thermal Ellipsometry Analysis

2011 ◽  
Vol 115 (7) ◽  
pp. 3115-3122 ◽  
Author(s):  
Benjamin Louis ◽  
Natacha Krins ◽  
Marco Faustini ◽  
David Grosso
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Tio2 Sol

Microstructural Evolution of TiO2 Sol-Gel Thin Films

1990 ◽  
Vol 180 ◽  
Author(s):  
J.L. Keddie ◽  
E.P. Giannelis
Keyword(s):  
Thin Films ◽  
Relative Density ◽  
Microstructural Evolution ◽  
Sol Gel ◽  
Dynamic Vacuum ◽  
Tio2 Sol ◽  
Sol Gel Films ◽  
Deposited Films ◽  
Deposition Conditions

ABSTRACTBackscattering spectrometry has been used to determine the density of TiO2 sol-gel films. The density of the as-deposited films relative to that of anatase varies slightly with respect to deposition conditions and is approximately 0.5. Annealing at temperatures as high as 750°C increases the relative density to 0.7 with concomitant decreases in the O:Ti ratio and H content but it does not result in complete densification. Film densities are consistently higher for films annealed under dynamic vacuum compared to those in air.

scholarly journals Double layer SiO2–TiO2 sol–gel thin films on glass for antireflection, antifogging, and UV recoverable self-cleaning

2020 ◽  
Vol 59 (25) ◽  
pp. 7720
Author(s):  
F. M. Fardo ◽  
R. S. Ribeiro ◽  
J. A. Strauss ◽  
J. Nardi ◽  
L. C. Ferreira ◽  
...  
Keyword(s):  
Thin Films ◽  
Double Layer ◽  
Sol Gel ◽  
Tio2 Sol ◽  
Self Cleaning

Preparation and third order nonlinear optical property of rhodamine-6G-doped SiO2-TiO2 sol-gel thin films

1998 ◽  
Author(s):  
Xiyan Zhang ◽  
Zhifeng Cao ◽  
Kuisheng Yang ◽  
Gaoqun Long
Keyword(s):  
Thin Films ◽  
Optical Property ◽  
Nonlinear Optical ◽  
Nonlinear Optical Property ◽  
Rhodamine 6G ◽  
Sol Gel ◽  
Third Order ◽  
Tio2 Sol

On electrical and photoconductive properties of mixed Nb2O5/TiO2 sol–gel thin films

2010 ◽  
Vol 356 (37-40) ◽  
pp. 2042-2048 ◽  
Author(s):  
D. Joskowska ◽  
K. Pomoni ◽  
A. Vomvas ◽  
B. Kościelska ◽  
D.L. Anastassopoulos
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Tio2 Sol
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