On electric conduction of amorphous silicon carbonitride derived from a polymeric precursor

Yaohan Chen; Fuqian Yang; Linan An

doi:10.1063/1.4809825

On electric conduction of amorphous silicon carbonitride derived from a polymeric precursor

Yaohan Chen, Fuqian Yang, Linan An

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Abstract

A long-existing problem that the conductivity of amorphous silicon carbonitrides derived from polymeric precursor increases significantly with pyrolysis temperature is investigated. We show that the conductivity exhibited an Arrhenius dependence on pyrolysis temperature, with the activation energy of ∼3.41 eV. Structural analysis using Raman spectroscopy reveals that the free carbon within the material undergoes a sp³-to-sp² transition as pyrolysis temperature increases, with the activation energy of ∼3.6 eV. We conclude that the pyrolysis-temperature induced increase in the conductivity is mainly due to the increase in the conductivity of the free carbon. A simple model is proposed to correlate the two.

Original language	English
Article number	231902
Journal	Applied Physics Letters
Volume	102
Issue number	23
DOIs	https://doi.org/10.1063/1.4809825
State	Published - Jun 10 2013

Bibliographical note

Funding Information:
This work was financially supported by National Energy Technology Laboratory, Department of Energy of USA (DE-FE0007004).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4809825

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title = "On electric conduction of amorphous silicon carbonitride derived from a polymeric precursor",

abstract = "A long-existing problem that the conductivity of amorphous silicon carbonitrides derived from polymeric precursor increases significantly with pyrolysis temperature is investigated. We show that the conductivity exhibited an Arrhenius dependence on pyrolysis temperature, with the activation energy of ∼3.41 eV. Structural analysis using Raman spectroscopy reveals that the free carbon within the material undergoes a sp3-to-sp2 transition as pyrolysis temperature increases, with the activation energy of ∼3.6 eV. We conclude that the pyrolysis-temperature induced increase in the conductivity is mainly due to the increase in the conductivity of the free carbon. A simple model is proposed to correlate the two.",

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AU - Chen, Yaohan

AU - Yang, Fuqian

AU - An, Linan

N1 - Funding Information: This work was financially supported by National Energy Technology Laboratory, Department of Energy of USA (DE-FE0007004).

PY - 2013/6/10

Y1 - 2013/6/10

N2 - A long-existing problem that the conductivity of amorphous silicon carbonitrides derived from polymeric precursor increases significantly with pyrolysis temperature is investigated. We show that the conductivity exhibited an Arrhenius dependence on pyrolysis temperature, with the activation energy of ∼3.41 eV. Structural analysis using Raman spectroscopy reveals that the free carbon within the material undergoes a sp3-to-sp2 transition as pyrolysis temperature increases, with the activation energy of ∼3.6 eV. We conclude that the pyrolysis-temperature induced increase in the conductivity is mainly due to the increase in the conductivity of the free carbon. A simple model is proposed to correlate the two.

AB - A long-existing problem that the conductivity of amorphous silicon carbonitrides derived from polymeric precursor increases significantly with pyrolysis temperature is investigated. We show that the conductivity exhibited an Arrhenius dependence on pyrolysis temperature, with the activation energy of ∼3.41 eV. Structural analysis using Raman spectroscopy reveals that the free carbon within the material undergoes a sp3-to-sp2 transition as pyrolysis temperature increases, with the activation energy of ∼3.6 eV. We conclude that the pyrolysis-temperature induced increase in the conductivity is mainly due to the increase in the conductivity of the free carbon. A simple model is proposed to correlate the two.

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On electric conduction of amorphous silicon carbonitride derived from a polymeric precursor

Abstract

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