Interlevel absorption of electromagnetic waves by nanocrystal with divalent impurity

TL;DR

This paper investigates how divalent impurities affect the interlevel absorption of electromagnetic waves in spherical quantum dots, analyzing the dependence on quantum dot size and frequency, and comparing with univalent impurities.

Contribution

It provides a detailed calculation of the energy spectrum and absorption properties for divalent impurities in quantum dots, highlighting differences from univalent impurities.

Findings

Absorption coefficient varies with quantum dot size and frequency.

Divalent impurities influence interlevel transition strength.

Comparison shows differences between divalent and univalent impurities.

Abstract

The energy spectrum of central divalent impurity is calculated using the effective mass approximation in a spherical quantum dot (QD). The dipole moment and oscillator strength of interlevel transition is defined. The dependence of linear absorption coefficient on the QD size and electromagnetic frequency is analyzed. The obtained results are compared with the results of univalent impurity.