Novel strain-induced low dimensional confinement structures

TL;DR

This paper introduces innovative strain-induced low-dimensional confinement structures that can transform the electronic properties of materials, enabling new optoelectronic applications through engineered heterostructures.

Contribution

It presents a novel method to create confinement structures by applying strain to a single material, offering a new approach to manipulate electronic band gaps.

Findings

Strain can convert indirect gaps into direct or quasi-direct gaps.

Zone folding plays a significant role in the gap transformation.

New heterostructures can be engineered via periodic or aperiodic strain application.

Abstract

We propose new confinement structures similar to heterostructures and superlattices. The new heteostructures can be obtained by applying strain to a single material in a periodic or aperiodic way. The conversion of an indirect gap into an optical active direct or quasi-direct gap problem has also been investigated together with the role of zone folding in this phenomenon.