Analysis of the energy spectrum of indium antimonide quantum dots with temperature changes

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 $\varepsilon_{c1} - \varepsilon_{v1}$, the broadening in percentage will decrease, which should lead to an increase in the temperature stability of the electrophysical parameters.