Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 26, Issue 12, Pages 9583-9590Publisher
SPRINGER
DOI: 10.1007/s10854-015-3621-z
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Funding
- Program for New Century Excellent Talents in University
- Natural Science Foundation of Inner Mongolia [2015JQ04]
- Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region
- Grassland Talent Plan of Inner Mongolia Autonomous Region
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(1 - x)Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) [(1 - x)PMN-xPT] relaxor ferroelectric thin films with x = 0.1, 0.2 and 0.3 were deposited on LaNiO3(100)/Pt(111)/TiO2/SiO2/Si substrates by the radio-frequency magnetron sputtering technique. The dielectric properties and energy-storage performances of these films were investigated in detail. X-ray diffraction spectra indicated that the thin films crystallized into a pure perovskite phase after annealed at 700 A degrees C. Moreover, all the (1 - x)PMN-xPT thin films showed the uniform and crack-free microstructure. With PT content increasing, the dielectric constant and the maximum polarization of the films increased gradually. A maximum recoverable energy-storage density of 31 J/cm(3) was achieved in the thin films with x = 0.2 under 2000 kV/cm at room temperature. Thus, (1 - x)PMN-xPT thin films with proper chemical composition are a promising candidate for high energy-storage capacitor application.
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