Impact of the nanosecond volume discharge in atmospheric pressure air on the distribution of the surface potential of epitaxial HgCdTe

Abstract

In this paper we present the results of our research of the impact of nanosecond volume discharge on the electronic properties of the near-surface region of epitaxial Hg_1-xCd_xTe films. We show that the distribution of the surface potential and, as a consequence, the material composition of the individual crystal grains that form V-defects possess a complex structure and contain regions with elevated content of both mercury and cadmium. The volume discharge treatment of the film surface leads to a decrease of the mercury content in individual crystal grains compared to the bulk of Hg_1-xCd_xTe epitaxial film. This indicates a higher mercury desorption rate from the V-defect region.

Original language	English
Article number	095112
Journal	Journal of Physics D: Applied Physics
Volume	49
Issue number	9
DOIs	https://doi.org/10.1088/0022-3727/49/9/095112
Publication status	Published - 3 Feb 2016
Externally published	Yes

Keywords

contact potential difference
fine films
HgCdTe
Kelvin force probe microscopy
molecular beam epitaxy

ASJC Scopus subject areas

Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/0022-3727/49/9/095112

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Impact of the nanosecond volume discharge in atmospheric pressure air on the distribution of the surface potential of epitaxial HgCdTe. / Novikov, V. A.; Grigoryev, D. V.; Bezrodnyy, D. A.; Tarasenko, V. F.; Shulepov, Ivan Anisimovich; Dvoretsky, S. A.; Mikhailov, N. N.

In: Journal of Physics D: Applied Physics, Vol. 49, No. 9, 095112, 03.02.2016.

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

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abstract = "In this paper we present the results of our research of the impact of nanosecond volume discharge on the electronic properties of the near-surface region of epitaxial Hg1-xCdxTe films. We show that the distribution of the surface potential and, as a consequence, the material composition of the individual crystal grains that form V-defects possess a complex structure and contain regions with elevated content of both mercury and cadmium. The volume discharge treatment of the film surface leads to a decrease of the mercury content in individual crystal grains compared to the bulk of Hg1-xCdxTe epitaxial film. This indicates a higher mercury desorption rate from the V-defect region.",

keywords = "contact potential difference, fine films, HgCdTe, Kelvin force probe microscopy, molecular beam epitaxy",

author = "Novikov, {V. A.} and Grigoryev, {D. V.} and Bezrodnyy, {D. A.} and Tarasenko, {V. F.} and Shulepov, {Ivan Anisimovich} and Dvoretsky, {S. A.} and Mikhailov, {N. N.}",

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AU - Novikov, V. A.

AU - Grigoryev, D. V.

AU - Bezrodnyy, D. A.

AU - Tarasenko, V. F.

AU - Shulepov, Ivan Anisimovich

AU - Dvoretsky, S. A.

AU - Mikhailov, N. N.

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KW - contact potential difference

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