Effect of Annealing on Microstructure and Capacitance Properties of Sol-gel TiO2 Film on Aluminum

Kang, Huifeng

doi:10.20964/2021.01.21

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…The XRD peaks height increases with increasing annealing temperature, up to 750 °C, which indicates increased crystallite size and improved oxygen stoichiometry with increasing annealing temperature. 48 From the measured XRD data in Fig. 1, stress (S) in the prepared films was calculated using the relation, 49,50 49,51 of bulk BCZT 0.9 , and b is the observed lattice constant of the prepared BCZT 0.9 film.…”

Section: Resultsmentioning

confidence: 99%

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba_1−zCa_z)(Zr_0.1Ti_0.9)O₃], (z = 0.155), Films

Biswas

Thapliyal

Sharma

et al. 2023

ECS J. Solid State Sci. Technol.

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Thin films were deposited on quartz and p-Si (100) substrates by radio frequency sputtering of ceramic barium calcium zirconate titanate [(Ba1-zCaz)(Zr0.1Ti0.9)O3],(z = 0.155), target. The as-deposited films were annealed for one hour at different temperatures, between 500 and 800°C. The occurrence of film crystallization was observed on annealing at and above 600°C. However, films peeled out on annealing at 800°C. The structure, optical transmittance, dielectric constant, and leakage current of the prepared films (hereafter referred to as BCZT0.9 films), annealed at different temperatures, were measured. The optical bandgap of the BCZT0.9 films was found to reduce from 4.24 to 3.87 eV with the increase in annealing temperature. On crystallization, the leakage current density of the prepared films decreased by an order of three, from ~10-6 for amorphous to ~10-9 A/cm2 for crystalline films. The current-voltage variations of the prepared films exhibit different conductions for different annealing treatments. The dielectric constant was obtained maximum, 148 (at 1 MHz), and leakage current density minimum, 3.6 × 10-9 A/cm2 (at 3.0 × 102 kV/cm electric field), for the films annealed at 750°C. Electrical properties were observed to improve for the films annealed at 750°C than other annealed films.

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Section: Resultsmentioning

confidence: 99%

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba_1−zCa_z)(Zr_0.1Ti_0.9)O₃], (z = 0.155), Films

Biswas

Thapliyal

Sharma

et al. 2023

ECS J. Solid State Sci. Technol.

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“…Moreover, Zhou et al [3] found that alkaline cleaning before acidic pickling can improve the corrosion resistance of Zr conversion coating on 6061 aluminum alloy. In previous research, TiO2 coating onto aluminum was made using wet and dry coating methods such as dip-coating [11][12][13][14][15][16][17], atomic layer deposition [4,18], and magnetron sputtering [19]. Wet coating methods, such as spraying, dipping, spinning, and the doctor-blade and chemical sintering methods, are of interest because these methods can be conducted at low temperature, are suitable for large-area film and are economical.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Coating Ability of TiO2 Nanoparticles onto Aluminum Alloy Sheet by Physicochemical Analysis

Wetchakun

2022

Curr. Appl. Sci. Technol.

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TiO2 nanoparticle films were successively coated onto aluminum (Al) alloy sheet using a coating technique at 150C for 5 h. This was a chemical sintering method, integrated with Al/TiO2/Al sandwich coupling and used weak acid as a binder. To evaluate the coating ability of the TiO2 nanoparticles on the aluminum alloy sheet, the physicochemical characteristics of the film samples were analyzed by means of SEM-EDS, FT-IR and XRD. The TiO2 films prepared by the coating technique at 150C for 5 h were compared with TiO2 films prepared by the doctor-blade technique at 500C for 10 min using two different organics as binders. The results of the physicochemical analysis indicated that the coating technique at 150C for 5 h provided superior coating ability of TiO2 nanoparticles onto aluminum alloy sheet than the doctor-blade technique. This may have been because of reduction of the thermal gradient at the TiO2 interface, which affected the relaxation of internal and external stresses on the TiO2 film on the aluminum alloy substrate. In this work, the TiO2 film prepared by chemical sintering method, integrated with Al/TiO2/Al sandwich coupling at 150C for 5 h using weak acid mixed with 5 wt.% ammonia as a binder proved to produce the optimum TiO2 film; however, film thickness control using the coating technique at 150C for 5 h still needs to be developed.

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Preparation and electrochemical capacitance of high surface area TiO2–RuO2 aerogels

et al. 2021

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Effect of Annealing on Microstructure and Capacitance Properties of Sol-gel TiO2 Film on Aluminum

Cited by 4 publications

References 26 publications

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba_1−zCa_z)(Zr_0.1Ti_0.9)O₃], (z = 0.155), Films

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba_1−zCa_z)(Zr_0.1Ti_0.9)O₃], (z = 0.155), Films

Evaluation of Coating Ability of TiO2 Nanoparticles onto Aluminum Alloy Sheet by Physicochemical Analysis

Preparation and electrochemical capacitance of high surface area TiO2–RuO2 aerogels

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Effect of Annealing on Microstructure and Capacitance Properties of Sol-gel TiO2 Film on Aluminum

Cited by 4 publications

References 26 publications

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba1−zCaz)(Zr0.1Ti0.9)O3], (z = 0.155), Films

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba1−zCaz)(Zr0.1Ti0.9)O3], (z = 0.155), Films

Evaluation of Coating Ability of TiO2 Nanoparticles onto Aluminum Alloy Sheet by Physicochemical Analysis

Preparation and electrochemical capacitance of high surface area TiO2–RuO2 aerogels

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Product

Resources

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Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba_1−zCa_z)(Zr_0.1Ti_0.9)O₃], (z = 0.155), Films

Annealing Temperature-Dependent Structural, Optical, and Electrical Properties of [(Ba_1−zCa_z)(Zr_0.1Ti_0.9)O₃], (z = 0.155), Films