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Synthesis and Mechanism of BaTiO 3 Plate‐Like and Nanoparticle Films on Ti Substrate
Author(s) -
Jiao Hua,
Zhao Kang,
Shi Rui,
Ma Lining,
Tang Yufei
Publication year - 2018
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201700107
Subject(s) - materials science , crystallization , nanoparticle , photoluminescence , substrate (aquarium) , barium titanate , chemical engineering , crystal (programming language) , x ray photoelectron spectroscopy , thin film , ferroelectricity , composite material , nanotechnology , ceramic , optoelectronics , dielectric , oceanography , geology , computer science , engineering , programming language
Plate‐like and nanoparticle barium titanate (BaTiO 3 [BT]) films are synthesized on Ti substrate by low temperature reaction using Ti, Ba(AC) 2 , and NaOH as raw materials. The films are characterized by XRD, SEM, TEM, and photoluminescence spectroscopy (PL) to obtain sizes, crystal structure, and emission peaks. The results show that BaTiO 3 plate‐like films can be obtained at 140 °C for 4 h have a stronger (110) diffraction peak than other conditions. The diameter is 2.08.0 µm. BaTiO 3 nanoparticle films are obtained via changing the reaction order and the average diameter is 30 nm. The adhesion strength of BaTiO 3 plate‐like film is 16.9 MPa and that of the nanoparticle film is 13.6 MPa. It is shown in PL results that the emission peaks of plate‐like films are from 663 to 691 nm. Finally, a solubility–crystallization mechanism and an in situ crystallization mechanism are proposed to explain the formation process of BaTiO 3 plate‐like films and nanoparticle films, respectively.