Electron and hole energy spectrum of non-concentric spherical core-shell quantum dot under an externally applied electric field

TL;DR

This paper models how an external electric field affects the energy spectrum of electrons and holes in a non-concentric spherical core-shell quantum dot, revealing dependencies on field strength and core position.

Contribution

It introduces a new model for non-concentric quantum dots under electric fields, analyzing energy level splitting, degeneracy, and optical gap variations.

Findings

Energy levels depend on electric field intensity and core position.

Energy level splitting and degeneracy are affected by the electric field.

Optical gap varies with electric field strength and core location.

Abstract

A model of the non-concentric spherical core-shell quantum dot under the influence of an externally applied electric field was proposed. It was established that the energy spectrum of both the electron and the hole depends on the intensity of the electric field as well as on the specific location of the core within the quantum dot. The phenomenon of energy level splitting and degeneration was analyzed in detail. Additionally, the variations in the optical gap were determined and expressed as a function of the applied electric field strength and the position of the core in the quantum dot.