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

Guang Sheng Wang; Ying Ying Wu; Xiao Juan Zhang; Yong Li; Lin Guo; Mao Sheng Cao

doi:10.1039/c4ta00485j

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

Guang Sheng Wang^*, Ying Ying Wu, Xiao Juan Zhang, Yong Li, Lin Guo, Mao Sheng Cao

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

144 Citations (Scopus)

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. This journal is

Original language	English
Pages (from-to)	8644-8651
Number of pages	8
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	23
DOIs	https://doi.org/10.1039/c4ta00485j
Publication status	Published - 21 Jun 2014

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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. This journal is",

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AU - Wang, Guang Sheng

AU - Wu, Ying Ying

AU - Zhang, Xiao Juan

AU - Li, Yong

AU - Guo, Lin

AU - Cao, Mao Sheng

PY - 2014/6/21

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AB - 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. This journal is

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

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