Magneto-photoluminescence in GaAs/AlAs core-multishell nanowires: a theoretical investigation

TL;DR

This theoretical study predicts how magneto-photoluminescence in GaAs/AlAs core-multishell nanowires varies with excitation intensity, magnetic field, doping, and anisotropy, using a self-consistent effective mass approach.

Contribution

It introduces a comprehensive theoretical model for magneto-photoluminescence in complex nanowire structures considering multiple variables.

Findings

Photoluminescence depends on excitation power and magnetic field.

Doping type influences the photoluminescence behavior.

Anisotropy affects the emission characteristics.

Abstract

The magneto-photoluminescence in modulation doped core-multishell nanowires is predicted as a function of photo-excitation intensity in non-perturbative transverse magnetic fields. We use a self-consistent field approach within the effective mass approximation to determine the photoexcited electron and hole populations, including the complex composition and anisotropic geometry of the nano-material. The evolution of the photoluminescence is analyzed as a function of i) photo-excitation power, ii) magnetic field intensity, iii) type of doping, and iv) anisotropy with respect to field orientation.