Effects of hydrogen plasma treatment on sol-gel-derived ZnO studied by impedance spectroscopy

Se Hun Kim; J. H. Han; B. H. Oh; J. K. Park; S. Lee; S. Y. Jeong; Cheol Eui Lee

doi:10.1088/2053-1591/aa6f36

Effects of hydrogen plasma treatment on sol-gel-derived ZnO studied by impedance spectroscopy

Se Hun Kim, J. H. Han, B. H. Oh, J. K. Park, S. Lee, S. Y. Jeong, Cheol Eui Lee

Department of Physics

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

Abstract

Effects of hydrogen plasma treatment on the electrical properties of a sol-gel-derived polycrystalline zinc oxide (ZnO) system have been studied by employing impedance spectroscopy. Complex impedance data were analyzed by employing an equivalent circuit. Hydrogen plasma treatment markedly increased the low-frequency range of constant values of the real part of complex impedance. As a result of plasma treatment, electrical conductivity was found to increase by about two orders of magnitude, with the activation energy being reduced from 0.62 eV to 0.30 eV. The dielectric constant also showed a two-fold increase following the plasma treatment.

Original language	English
Article number	075901
Journal	Materials Research Express
Volume	4
Issue number	7
DOIs	https://doi.org/10.1088/2053-1591/aa6f36
Publication status	Published - 2017 Jul

Keywords

Hydrogen plasma treatment
Impedance spectroscopy
ZnO

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Polymers and Plastics
Metals and Alloys

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10.1088/2053-1591/aa6f36

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title = "Effects of hydrogen plasma treatment on sol-gel-derived ZnO studied by impedance spectroscopy",

abstract = "Effects of hydrogen plasma treatment on the electrical properties of a sol-gel-derived polycrystalline zinc oxide (ZnO) system have been studied by employing impedance spectroscopy. Complex impedance data were analyzed by employing an equivalent circuit. Hydrogen plasma treatment markedly increased the low-frequency range of constant values of the real part of complex impedance. As a result of plasma treatment, electrical conductivity was found to increase by about two orders of magnitude, with the activation energy being reduced from 0.62 eV to 0.30 eV. The dielectric constant also showed a two-fold increase following the plasma treatment.",

keywords = "Hydrogen plasma treatment, Impedance spectroscopy, ZnO",

author = "Kim, {Se Hun} and Han, {J. H.} and Oh, {B. H.} and Park, {J. K.} and S. Lee and Jeong, {S. Y.} and Lee, {Cheol Eui}",

year = "2017",

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T1 - Effects of hydrogen plasma treatment on sol-gel-derived ZnO studied by impedance spectroscopy

AU - Kim, Se Hun

AU - Han, J. H.

AU - Oh, B. H.

AU - Park, J. K.

AU - Lee, S.

AU - Jeong, S. Y.

AU - Lee, Cheol Eui

PY - 2017/7

Y1 - 2017/7

N2 - Effects of hydrogen plasma treatment on the electrical properties of a sol-gel-derived polycrystalline zinc oxide (ZnO) system have been studied by employing impedance spectroscopy. Complex impedance data were analyzed by employing an equivalent circuit. Hydrogen plasma treatment markedly increased the low-frequency range of constant values of the real part of complex impedance. As a result of plasma treatment, electrical conductivity was found to increase by about two orders of magnitude, with the activation energy being reduced from 0.62 eV to 0.30 eV. The dielectric constant also showed a two-fold increase following the plasma treatment.

AB - Effects of hydrogen plasma treatment on the electrical properties of a sol-gel-derived polycrystalline zinc oxide (ZnO) system have been studied by employing impedance spectroscopy. Complex impedance data were analyzed by employing an equivalent circuit. Hydrogen plasma treatment markedly increased the low-frequency range of constant values of the real part of complex impedance. As a result of plasma treatment, electrical conductivity was found to increase by about two orders of magnitude, with the activation energy being reduced from 0.62 eV to 0.30 eV. The dielectric constant also showed a two-fold increase following the plasma treatment.

KW - Hydrogen plasma treatment

KW - Impedance spectroscopy

KW - ZnO

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JO - Materials Research Express

JF - Materials Research Express

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Effects of hydrogen plasma treatment on sol-gel-derived ZnO studied by impedance spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

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