Preparation of conducting film composed of polyaniline and metal oxide by sol-gel method

1999 ◽  
Vol 14 (1) ◽  
pp. 5-7 ◽  
Author(s):  
Takuya Hori ◽  
Noriyuki Kuramoto ◽  
Hideyuki Tagaya ◽  
Masa Karasu ◽  
Jun-ichi Kadokawa ◽  
...  
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Sol Gel ◽  
Silica Matrix ◽  
Conducting Film ◽  
Gel Method ◽  
Sol Gel Method

Conducting thin films were prepared by entrapping water-suspended polyaniline into a silica matrix by a sol-gel route. Without metal oxide, the conductivity of the film decreased after heat treatment. However, in the presence of metal oxides such as TiO2 and Al2O3, the conductivity increased after heat treatment at 85 °C and reached 17 Scm−1 The conductivity of the film depended on the kinds and amounts of metal oxides and the temperature of heat treatment.

Effects of cooling rate and post-heat treatment on properties of ZnO thin films deposited by sol–gel method

2011 ◽  
Vol 257 (21) ◽  
pp. 9019-9023 ◽  
Author(s):  
Min Su Kim ◽  
Kwang Gug Yim ◽  
Dong-Yul Lee ◽  
Jin Soo Kim ◽  
Jong Su Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Cooling Rate ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Post Heat Treatment ◽  
Gel Method ◽  
Sol Gel Method

The effect of heat treatment in the reducing atmosphere on the physical properties of TiO2 thin films prepared by sol–gel method

2013 ◽  
Vol 67 (2) ◽  
pp. 236-243 ◽  
Author(s):  
Maryam Sadat Ghorashi ◽  
Azarmidokht Hosseinnia ◽  
Fereydoun Alikhani Hessari ◽  
Yadolah Ganjkhanlou
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Physical Properties ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Gel Method ◽  
Sol Gel Method ◽  
Reducing Atmosphere

Origin of Leakage Current of YMnO3 Thin Films Prepared by the Sol-Gel Method

1999 ◽  
Vol 596 ◽  
Author(s):  
Hiroya Kitahata ◽  
Kiyoharu Tadanaga ◽  
Tsutomu Minami ◽  
Norifumi Fujimura ◽  
Taichiro Ito
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Leakage Current ◽  
Sol Gel ◽  
Hydrogen Atmosphere ◽  
Gel Method ◽  
Sol Gel Method ◽  
Preparation Conditions ◽  
Dense Microstructure ◽  
Zirconium Doping

AbstractThe preparation conditions of YMnO3 thin films by the sol-gel method using yttrium alkoxide were optimized to decrease the leakage current of the films. The leakage current of the films was decreased due to the dense microstructure of the films. Moreover, the heat treatment in hydrogen atmosphere and the zirconium doping resulted in a further decrease of the leakage current. The heat treatment in hydrogen atmosphere and the zirconium doping were effective in the decrease of carriers originating in the valence fluctuation of the Mn ions in YMnO3

Preparation and Characterization of Epitaxial KNBO3 Thin Films by a Sol-Gel Method

1993 ◽  
Vol 310 ◽  
Author(s):  
Hidehiro Endo ◽  
M. J. Cima
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Grain Growth ◽  
Sol Gel ◽  
Soaking Time ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sol Gel Process ◽  
Surface Morphologies

AbstractEpitaxial formation of KNbO3 films on several substrates was examined. The films were prepared by a sol-gel process using potassium ethoxide and niobium pentaethoxide. Hetero-epitaxial KNbO3 films with (100) orientation were successfully obtained both on MgO (100) and SrTiO3 (100) substrates by heat treatments above 700°C, while polycrystalline KNbO3 were formed on Si (111) substrates. Higher temperatures and extended soaking time promoted the grain growth of KNbO3 and KNbO3 films with improved surface morphologies (smoother surfaces) could be obtained by controlling heat treatment parameters.

Preparation of metal oxide supported catalysts and their utilization for understanding the effect of a support on the catalytic activity

2018 ◽  
Vol 42 (1) ◽  
pp. 402-410 ◽  
Author(s):  
Jhumur Seth ◽  
Prashant Dubey ◽  
Vijay R. Chaudhari ◽  
Bhagavatula L. V. Prasad
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Metal Nanoparticles ◽  
Supported Catalysts ◽  
Sol Gel ◽  
Transition Metal Nanoparticles ◽  
Gel Method ◽  
Sol Gel Method

A convenient way of anchoring transition metal nanoparticles onto metal oxides by means of a toluene mediated sol–gel method is described.

Optical properties of Zn1−x Al x O:NiO transparent metal oxide composite thin films prepared by sol–gel method

2015 ◽  
Vol 76 (2) ◽  
pp. 378-385 ◽  
Author(s):  
Bilal Arif ◽  
H. M. El-Nasser ◽  
A. Dere ◽  
Ahmed A. Al-Ghamdi ◽  
S. Bin-Omran ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Metal Oxide ◽  
Sol Gel ◽  
Composite Thin Films ◽  
Gel Method ◽  
Sol Gel Method ◽  
Oxide Composite
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