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Issue 4, 2019
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Significant enhancement of energy storage density and polarization in self-assembled PbZrO3 : NiO nano-columnar composite films

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Abstract

Self-assembled nanostructures are important for determining the physical properties of epitaxial oxide films. We successfully fabricated perfectly ordered NiO nano-columns embedded in an antiferroelectric (AFE) PbZrO3 (PZO) matrix over large areas. In this system, a giant recoverable energy storage density of Wr = 24.6 J cm−3 and polarization of PS = 91 μC cm−2 were achieved in the structure of PZO : NiO nano-composites. These values are 333% and 253% larger than those of a pure PZO film, respectively. Additionally, the properties could be tuned by gradually changing the volume ratio of the constituents. Hence, we demonstrate a new approach for enhancing the energy storage of AFE materials and exercising control over nano-column-embedded nanocomposites.

Graphical abstract: Significant enhancement of energy storage density and polarization in self-assembled PbZrO3 : NiO nano-columnar composite films

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Publication details

The article was received on 04 Nov 2018, accepted on 17 Dec 2018 and first published on 20 Dec 2018


Article type: Paper
DOI: 10.1039/C8NR08887J
Citation: Nanoscale, 2019,11, 1914-1920

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    Significant enhancement of energy storage density and polarization in self-assembled PbZrO3 : NiO nano-columnar composite films

    M. J. Chen, X. K. Ning, S. F. Wang and G. S. Fu, Nanoscale, 2019, 11, 1914
    DOI: 10.1039/C8NR08887J

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