BaTiO3 Functional Ceramics Thin Film Prepared by Self-Assembled Monolayers

Guo Qiang Tan; Cheng Zhang; Hong Yan Miao; Hui Jun Ren; Ao Xia

doi:10.4028/www.scientific.net/AMR.105-106.266

Paper Titles

Structure and Dielectric Behavior of La-Doped BaTiO₃ Ceramics
p.252

Preparation of HfO₂ Thin Film through Self-Assembled Monolayers on Si Substrate
p.255

Ferroelectric Properties and Microstructures of Tb₄O₇-Doped Bi₄Ti₃O₁₂ Thin Films
p.259

Structure and Multiferroic Properties of Bi_0.9Y_0.1FeO₃-PbTiO₃ Ceramics
p.263

BaTiO₃ Functional Ceramics Thin Film Prepared by Self-Assembled Monolayers
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SrTiO₃ Functional Ceramics Thin Film Prepared by Self-Assembled Monolayers with the Liquid Phase Deposition Method on Silicon Substrates
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Influence of Slight Bismuth Additive on the Properties of Calcium Copper Titanate Ceramic
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A Study on the Disk-Type Piezoelectric Transformer of Mg:LN Single Crystal
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Electrical Properties of Bismuth-Layered Structural Ca_xSr_2-xBi₄Ti₅O₁₈ Ceramics
p.282

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 105-106BaTiO3 Functional Ceramics Thin Film Prepared by...

BaTiO₃ Functional Ceramics Thin Film Prepared by Self-Assembled Monolayers

Abstract:

BaTiO3 thin film was prepared by the self-assembled monolayers technique and liquid phase deposition. The effects of pH values and the deposition temperature on the formation of BaTiO3 film were studied. The results showed that the Si substrate was in the precursor solution with 0.025mol/L (AHFT/BN/BA=1:1:3) and pH= 1.5. At 45°C deposited for 8h and annealed at 600°C for 2h, the BaTiO3 film with higher crystalline was prepared on the functionalized Si substrate. XRD and SEM tests showed that the film deposited in the precursor solution with different pH values appeared BaTiO3 characteristic peaks on the surface of every crystal. As pH values increased to 1.5 from 0.5, the strength of the film diffraction peak increased. But the width of the peak became smaller and the crystalline increased. When pH value was 2, due to the self-polymerized deposition of [Ti(OH)6]2-, it was easy to form the larger particles on the substrate. When the deposition temperature was 45°C, the acicular BaTiO3 film formed with the regular order and homogeneous planeness on the substrate. When the deposition temperature was between 55°C and 60°C, the dewatering and polymerizing speed between [Ti(OH)6]2- ions was higher than that between [Ti(OH)6]2- and -OH. The adsorption of the film to the Si substrate was weakened. It was easy for the film to fall off.