Electrophysical properties of polycrystalline diamond films deposited from an abnormal glow discharge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electrophysical properties of polycrystalline diamond films (PDF), deposited from the abnormal glow discharge, were obtained. The energetic and kinetic characteristics of surface dark and photoconductivity of PDF and their temperature, field and spectral dependences were investigated. Dominant carrier transport mechanisms, their type and the energetic spectrum of localized defect states were established. Current-voltage characteristics, photosensitivity and activation energy are determined by conductivity of PDF, which varies from 10<sup>-14</sup> to 10<sup>-4</sup> S depending on deposition conditions. Vacuum annealing of films up to 600-800 K stabilizes the electrical characteristics. Thermal stability of PDF properties higher than semiconductor films, deposited under nonequilibrium conditions by pulsed laser and ion ablation. PDF films not inferior on properties to films, obtained by alternative CVD methods. Electrical characteristics, mechanism of charge transport of PDF were caused by defects of different nature, the energetic levels of which are continuously distributed on energy in the band gap. Dominant n-type of activation conduction is complemented by hopping mechanism through the localized states distributed near the Fermi level with density 5.60<sup>17</sup>-2.10<sup>21</sup> eV<sup>-1</sup> cm<sup>-3</sup>. Trapping and recombination centers are heterogeneously distributed on grain boundaries.

Original languageEnglish
Title of host publicationIOP Conference Series: Materials Science and Engineering
PublisherInstitute of Physics Publishing
Volume81
Edition1
DOIs
Publication statusPublished - 23 Apr 2015
EventInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014 - Tomsk, Russian Federation
Duration: 3 Nov 20148 Nov 2014

Other

OtherInternational Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014
CountryRussian Federation
CityTomsk
Period3.11.148.11.14

Fingerprint

Diamond films
Glow discharges
Defects
Photosensitivity
Carrier transport
Photoconductivity
Current voltage characteristics
Ablation
Fermi level
Pulsed lasers
Charge transfer
Chemical vapor deposition
Grain boundaries
Energy gap
Temperature distribution
Thermodynamic stability
Activation energy
Chemical activation
Vacuum
Annealing

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Gaydaychuk, A. V., Kabyshev, A. V., Konusov, F. V., Linnik, S. A., & Remnev, G. E. (2015). Electrophysical properties of polycrystalline diamond films deposited from an abnormal glow discharge. In IOP Conference Series: Materials Science and Engineering (1 ed., Vol. 81). [012006] Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/81/1/012006

Electrophysical properties of polycrystalline diamond films deposited from an abnormal glow discharge. / Gaydaychuk, A. V.; Kabyshev, A. V.; Konusov, F. V.; Linnik, S. A.; Remnev, G. E.

IOP Conference Series: Materials Science and Engineering. Vol. 81 1. ed. Institute of Physics Publishing, 2015. 012006.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gaydaychuk, AV, Kabyshev, AV, Konusov, FV, Linnik, SA & Remnev, GE 2015, Electrophysical properties of polycrystalline diamond films deposited from an abnormal glow discharge. in IOP Conference Series: Materials Science and Engineering. 1 edn, vol. 81, 012006, Institute of Physics Publishing, International Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2014, Tomsk, Russian Federation, 3.11.14. https://doi.org/10.1088/1757-899X/81/1/012006
Gaydaychuk AV, Kabyshev AV, Konusov FV, Linnik SA, Remnev GE. Electrophysical properties of polycrystalline diamond films deposited from an abnormal glow discharge. In IOP Conference Series: Materials Science and Engineering. 1 ed. Vol. 81. Institute of Physics Publishing. 2015. 012006 https://doi.org/10.1088/1757-899X/81/1/012006
Gaydaychuk, A. V. ; Kabyshev, A. V. ; Konusov, F. V. ; Linnik, S. A. ; Remnev, G. E. / Electrophysical properties of polycrystalline diamond films deposited from an abnormal glow discharge. IOP Conference Series: Materials Science and Engineering. Vol. 81 1. ed. Institute of Physics Publishing, 2015.
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