Lead-free ferroelectric barium titanate -based thin film for tunable microwave device application [* Cross-Reference *]

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Thu-Hien Vu; Nguyễn Thị Minh Phương; Tai Nguyen, 2026, "Lead-free ferroelectric barium titanate -based thin film for tunable microwave device application [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.MIN8HW, LIST Open Repository, V1
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Description
Abstract Lead-free ferroelectric barium titanate-based (Ba 0.85 Sr 0.15 Zr 0.1 Ti 0.9 O 3 , BSZT) thin films have been successfully deposited on Pt- coated silicon substrates by a spin-coating solgel method. Microstructure and dielectric respones of the Pt/BSZT/Pt thin film capacitors were investigated in detail. X-ray diffraction analysis results indicated that BSZT thin films were well crystallized in tetragonal perovskite structure with a random crystal orientation at rather low temperature of 650 °C. Dielectric constant and dielectric loss of the thin film capacitors were performed at various bias voltage ranges and frequency from 1kHz up to 5MHz. Hysteresis C-V curves with two maxima confirmed the ferroelectric nature in the film. The BSZT capacitors provide excellent dielectric tunability ∼ 42- 69% and high figure-of-merit (FOM) ∼ 4-17 at different bias voltages. (2021-02-01)
***This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.1088/1757-899x/1091/1/012060 for the original and latest version of the publication*** (2026-07-01)
Subject Engineering; Physics
Keyword Materials science, Dielectric, Ferroelectricity, Thin film, Capacitor, Barium titanate, Lead titanate, Dielectric loss, Perovskite (structure), Spin coating, Tetragonal crystal system, Hysteresis, Optoelectronics, Nanotechnology, Voltage, Crystal structure, Electrical engineering, Condensed matter physics, Crystallography
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