Gas medium effect on electrophysical properties of alumina irradiated with titanium ions

Abstract

Ion-heat modification allow to adjust the surface conductivity of inorganic dielectrics from σ=10^-15 S to 10^-4 S. The surface electrophysical and optical properties are stable after annealing in vacuum and in rare gases but they change in oxygen-contained mediums owing to interaction between defects and atmospheric oxygen. Energetic and kinetic characteristics of conduction, photoconduction, transport charge mechanisms and its stability after irradiation of the polycrystallme aluminium oxide with titanium ions (Φ=10¹⁷ cm^-2, E_I=100 keV) and subsequent annealing in vacuum and in air (P=1-10⁵ Pa, T_an=300-2000 K) were investigated. Induced defects and implanted ions accumulation and its integration into clusters and impurity-defects complexes, defects type transformation within complexes, defects charge exchange in clusters are determine the dependencies σ(Φ,T_an,T,t) in irradiated Al₂O₃ after annealing in vacuum. Oxygen-contained complexes with different electronic level spectra and stability, substitutional defect clusters and stoichiometric composition of compounds produced by ion-beat modification are determine the properties stability at the heating in air.

Original language	English
Title of host publication	Proceedings - 9th Russian-Korean International Symposium on Science and Technology, KORUS-2005
Pages	176-180
Number of pages	5
Volume	1
DOIs	https://doi.org/10.1109/KORUS.2005.1507677
Publication status	Published - 2005
Event	9th Russian-Korean International Symposium on Science and Technology, KORUS-2005 - Novosibirsk, Russian Federation Duration: 26 Jun 2005 → 2 Jul 2005

Other

Other	9th Russian-Korean International Symposium on Science and Technology, KORUS-2005
Country	Russian Federation
City	Novosibirsk
Period	26.6.05 → 2.7.05

ASJC Scopus subject areas

Engineering(all)

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10.1109/KORUS.2005.1507677

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Kabyshev, AV, Konusov, FV & Krivosheeva, NV 2005, Gas medium effect on electrophysical properties of alumina irradiated with titanium ions. in Proceedings - 9th Russian-Korean International Symposium on Science and Technology, KORUS-2005. vol. 1, 1507677, pp. 176-180, 9th Russian-Korean International Symposium on Science and Technology, KORUS-2005, Novosibirsk, Russian Federation, 26.6.05. https://doi.org/10.1109/KORUS.2005.1507677

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title = "Gas medium effect on electrophysical properties of alumina irradiated with titanium ions",

abstract = "Ion-heat modification allow to adjust the surface conductivity of inorganic dielectrics from σ=10-15 S to 10-4 S. The surface electrophysical and optical properties are stable after annealing in vacuum and in rare gases but they change in oxygen-contained mediums owing to interaction between defects and atmospheric oxygen. Energetic and kinetic characteristics of conduction, photoconduction, transport charge mechanisms and its stability after irradiation of the polycrystallme aluminium oxide with titanium ions (Φ=1017 cm-2, EI=100 keV) and subsequent annealing in vacuum and in air (P=1-105 Pa, Tan=300-2000 K) were investigated. Induced defects and implanted ions accumulation and its integration into clusters and impurity-defects complexes, defects type transformation within complexes, defects charge exchange in clusters are determine the dependencies σ(Φ,Tan,T,t) in irradiated Al2O3 after annealing in vacuum. Oxygen-contained complexes with different electronic level spectra and stability, substitutional defect clusters and stoichiometric composition of compounds produced by ion-beat modification are determine the properties stability at the heating in air.",

author = "Kabyshev, {A. V.} and Konusov, {F. V.} and Krivosheeva, {N. V.}",

year = "2005",

doi = "10.1109/KORUS.2005.1507677",

language = "English",

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volume = "1",

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booktitle = "Proceedings - 9th Russian-Korean International Symposium on Science and Technology, KORUS-2005",

note = "9th Russian-Korean International Symposium on Science and Technology, KORUS-2005 ; Conference date: 26-06-2005 Through 02-07-2005",

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AU - Kabyshev, A. V.

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AU - Krivosheeva, N. V.

PY - 2005

Y1 - 2005

N2 - Ion-heat modification allow to adjust the surface conductivity of inorganic dielectrics from σ=10-15 S to 10-4 S. The surface electrophysical and optical properties are stable after annealing in vacuum and in rare gases but they change in oxygen-contained mediums owing to interaction between defects and atmospheric oxygen. Energetic and kinetic characteristics of conduction, photoconduction, transport charge mechanisms and its stability after irradiation of the polycrystallme aluminium oxide with titanium ions (Φ=1017 cm-2, EI=100 keV) and subsequent annealing in vacuum and in air (P=1-105 Pa, Tan=300-2000 K) were investigated. Induced defects and implanted ions accumulation and its integration into clusters and impurity-defects complexes, defects type transformation within complexes, defects charge exchange in clusters are determine the dependencies σ(Φ,Tan,T,t) in irradiated Al2O3 after annealing in vacuum. Oxygen-contained complexes with different electronic level spectra and stability, substitutional defect clusters and stoichiometric composition of compounds produced by ion-beat modification are determine the properties stability at the heating in air.

AB - Ion-heat modification allow to adjust the surface conductivity of inorganic dielectrics from σ=10-15 S to 10-4 S. The surface electrophysical and optical properties are stable after annealing in vacuum and in rare gases but they change in oxygen-contained mediums owing to interaction between defects and atmospheric oxygen. Energetic and kinetic characteristics of conduction, photoconduction, transport charge mechanisms and its stability after irradiation of the polycrystallme aluminium oxide with titanium ions (Φ=1017 cm-2, EI=100 keV) and subsequent annealing in vacuum and in air (P=1-105 Pa, Tan=300-2000 K) were investigated. Induced defects and implanted ions accumulation and its integration into clusters and impurity-defects complexes, defects type transformation within complexes, defects charge exchange in clusters are determine the dependencies σ(Φ,Tan,T,t) in irradiated Al2O3 after annealing in vacuum. Oxygen-contained complexes with different electronic level spectra and stability, substitutional defect clusters and stoichiometric composition of compounds produced by ion-beat modification are determine the properties stability at the heating in air.

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