Analysis of the energy spectrum of indium antimonide quantum dots with temperature changes
https://doi.org/10.17586/2220-8054-2021-12-1-113-117
Abstract
In this paper we have analyzed the broadening of the levels of the energy spectrum of indium antimonide quantum dots with a change of sample temperature. The position of the levels was determined by processing normalized differential tunneling current-voltage characteristics using the “cubic” model of a quantum dot. Comparison of the calculated values of spectrum broadening with experimental results showed qualitative and quantitative agreement between the results. It is concluded that with a decrease in the quantum dot size and, accordingly, an increase in the energy gap εc1 − εv1, the broadening in percentage will decrease, which should lead to an increase in the temperature stability of the electrophysical parameters.
Keywords
quantum dots,
indium antimonide,
differential tunnel current-voltage characteristics,
energy spectrum
Supporting agencies: This work was supported by grants from the Russian Foundation for Basic Research Projects No. 19-07-00087 and No. 19-07-00086.
About the Authors
V. F. Kabanov
Saratov State University, Department of Nano- and Biomedical Technologies
Russian Federation
Russian Federation
Astrakhanskaya, 83, Saratov, 410012
A. I. Mikhailov
Saratov State University, Department of Nano- and Biomedical Technologies
Russian Federation
Russian Federation
Astrakhanskaya, 83, Saratov, 410012
M. V. Gavrikov
Saratov State University, Department of Nano- and Biomedical Technologies
Russian Federation
Russian Federation
Astrakhanskaya, 83, Saratov, 410012
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Review
For citations:
Kabanov V.F., Mikhailov A.I., Gavrikov M.V. Analysis of the energy spectrum of indium antimonide quantum dots with temperature changes. Nanosystems: Physics, Chemistry, Mathematics. 2021;12(1):113-117. https://doi.org/10.17586/2220-8054-2021-12-1-113-117
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