Electrical Properties ofBaTiO3Thin Film Grown by the Hydrothermal-Electrochemical Method

1997 ◽  
Vol 36 (Part 1, No. 3A) ◽  
pp. 1209-1215 ◽  
Author(s):  
Koji Kajiyoshi ◽  
Yukio Sakabe ◽  
Masahiro Yoshimura
Keyword(s):  
Electrical Properties ◽  
Electrochemical Method ◽  
Hydrothermal Electrochemical Method

scholarly journals Flexible diamond-like carbon film prepared by hydrothermal electrochemical method

2017 ◽  
Vol 35 (3) ◽  
pp. 447-453
Author(s):  
Ying Tao ◽  
Danqin Yi ◽  
Baojun Zhu ◽  
Wenpeng Cao
Keyword(s):  
Current Density ◽  
Electrochemical Method ◽  
Carbon Film ◽  
Reflectance Spectroscopy ◽  
Internal Stresses ◽  
Diamond Like Carbon ◽  
One Step ◽  
Hydrothermal Electrochemical Method ◽  
A Current

AbstractDiamond-like carbon (DLC) thin films were prepared by hydrothermal electrochemical method in one-step process. The structural characterization of these films was carried out by scanning electron microscopy (SEM), Raman spectroscopy, and infrared reflectance spectroscopy (IR). It was found that there was an increased sp2 carbon content but decreased sp3 carbon and hydrogen contents with an increase in current density. The flexibility and internal stresses of the DLC films were affected by hydrogen, sp3 amorphous carbon and ordered crystalline sp2 carbon contents. The highly flexible DLC films with high sp3 carbon and hydrogen contents were prepared at a current density of 0.001 mA/cm2.

Growth of Strontium Titanate Thin Films of Controlled Thickness by the Hydrothermal-Electrochemical Method

1994 ◽  
Vol 77 (11) ◽  
pp. 2889-2897 ◽  
Author(s):  
Koji Kajiyoshi ◽  
Kunisaburo Tomono ◽  
Yukio Hamaji ◽  
Torn Kasanami ◽  
Masahiro Yoshimura
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Electrochemical Method ◽  
Hydrothermal Electrochemical Method

Crystalline BaTiO3 Thin Film Prepared from Ti Metal by Hydrothermal-Electrochemical Method

1990 ◽  
Vol 200 ◽  
Author(s):  
Nobuo Ishizawa ◽  
Seung-Eul Yoo ◽  
Motoo Hayashi ◽  
Masahiro Yoshimura
Keyword(s):  
Thin Film ◽  
Electrochemical Method ◽  
Saturated Vapor ◽  
Electrolytic Cell ◽  
Constant Current ◽  
Vapor Pressures ◽  
Hydrothermal Conditions ◽  
Constant Current Density ◽  
Hydrothermal Electrochemical Method ◽  
A New Technique

ABSTRACTThin film of crystalline barium titanate, BaTiO3, has been prepared from Ti metal at 100–200°C by a new technique called “hydrothermal-electrochemical method” which could be categorized into a variety of the extended hydrothermal method. The reaction was carried out in an electrolytic cell containing 0.1–0.5N Ba(OH)2 aqueous solutions at temperatures of 100–200°C and under saturated vapor pressures. Titanium metal substrate or Ti-deposited glass substrate was used for the anode and a Pt plate for the cathode. Between the electrodes, a constant current density up to 100 mA/cm2 was applied galvanostatically for 10–80 min. Surface of the BaTiO3 film was lustrous and free from any visible defects. Thickness of the BaTiO3 films ranged from 70nm to 300nm. The adhesion between the film and substrate was so strong that no exfoliation was observed. Similar BaTiO3 thin films with thickness less than 70 nm were also formed even in simple hydrothermal conditions without applying any electric current.

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