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    Enhanced energy density with a wide thermal stability in epitaxial Pb0.92La0.08Zr0.52Ti0.48O3 thin films

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    Hu_AIP_2016.pdf (1.557Mb)
    Issue Date
    2016-11-08
    Author
    Hu, Guangliang
    Ma, Chunrui
    Wei, Wei
    Sun, Zixiong
    Lu, Lu
    Mi, Shao-Bo
    Liu, Ming
    Ma, Beihai
    Wu, Judy Z.
    Jai, Chun-lin
    Publisher
    AIP Publishing
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Rights
    Copyright © 2016 Guangliang Hu et al.
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    Abstract
    High-quality epitaxial Pb0.92La0.08Zr0.52Ti0.48O3 (PLZT) films of thickness of 880 nm were fabricated using pulsed laser deposition on (001) Nb doped SrTiO3 (Nb:STO) substrates. Besides a confirmation of the epitaxial relationship [100]PLZT//[100]Nb:STO and (001)PLZT//(001)Nb:STO using X-ray diffraction, a transmission electron microscopy study has revealed a columnar structure across the film thickness. The recoverable energy density (Wrec) of the epitaxial PLZT thin film capacitors increases linearly with the applied electric field and the best value of 31 J/cm3 observed at 2.27 MV/cm is considerably higher by 41% than that of the polycrystalline PLZT film of a comparable thickness. In addition to the high Wrec value, an excellent thermal stability as illustrated in a negligible temperature dependence of the Wrec in the temperature range from room temperature to 180 C is achieved. The enhanced Wrec and the thermal stability are attributed to the reduced defects and grain boundaries in epitaxial PLZT thin films, making them promising for energy storage applications that require both high energy density, power density, and wide operation temperatures.
    URI
    http://hdl.handle.net/1808/25498
    DOI
    https://doi.org/10.1063/1.4967223
    Collections
    • Physics and Astronomy Scholarly Works [1535]
    Citation
    Hu, G., Ma, C., Wei, W., Sun, Z., Lu, L., Mi, S., . . . Jia, C. (2016). Enhanced energy density with a wide thermal stability in epitaxial Pb0.92La0.08Zr0.52Ti0.48O3 thin films. Applied Physics Letters, 109(19), 193904. doi:10.1063/1.4967223

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    KU Libraries
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    KU Libraries
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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