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Issue 23, 2014
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Controllable synthesis of uniform ZnO nanorods and their enhanced dielectric and absorption properties

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Abstract

The enhanced dielectric properties of ZnO/PVDF nanocomposites resulting from the synthesis of uniform ZnO nanorods were studied. These results indicate that the dielectric constant of the composites is clearly improved (196 at 102 Hz), with a lower percolation threshold (volume 0.0548). Percolation theory was used to explain the enhanced dielectric properties. The stability of the dielectric constants of the percolation composites was also studied in the temperature range 20–140 °C. The enhanced wave absorption properties of the composites were investigated and, with a filler content of 10 wt%, the reflection loss appears as two peaks that can reach −15.90 dB at 6.60 GHz and −25.44 dB at 16.48 GHz. The mechanism for the increase in absorption properties is discussed.

Graphical abstract: Controllable synthesis of uniform ZnO nanorods and their enhanced dielectric and absorption properties

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Publication details

The article was received on 27 Jan 2014, accepted on 25 Mar 2014 and first published on 26 Mar 2014


Article type: Paper
DOI: 10.1039/C4TA00485J
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Citation: J. Mater. Chem. A, 2014,2, 8644-8651

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    Controllable synthesis of uniform ZnO nanorods and their enhanced dielectric and absorption properties

    G. Wang, Y. Wu, X. Zhang, Y. Li, L. Guo and M. Cao, J. Mater. Chem. A, 2014, 2, 8644
    DOI: 10.1039/C4TA00485J

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