What question did this study set out to answer?

This research aims to improve the modeling of bandgaps and optical absorption in InAs/InAsSb type-II superlattices.

May 29, 2026RSC Applied Interfaces0 citationsOpen Access

Efficient Prediction of Effective Bandgap and Optical Absorption in InAs/InAsSb Type-II Superlattices Using Localization Landscape Theory

ZWZhi-Jie Wu ŁKŁukasz Kubiszyn KMKrystian Michalczewski

Key Points

This research aims to improve the modeling of bandgaps and optical absorption in InAs/InAsSb type-II superlattices.
Utilized localization landscape theory for quantitative modeling
Analyzed optical properties of Ga-free InAs/InAsSb type-II superlattices
Focused on mid-wave and longwave infrared absorption characteristics
Successfully predicted effective bandgaps with improved accuracy
Enhanced understanding of absorption properties in the targeted wavelength ranges
Indicated potential for optimization in photodetector applications

Abstract

Ga-free InAs/InAsSb type-II superlattices (T2SLs) are promising absorber materials for mid-wave and longwave infrared (MWIR and LWIR) photodetectors, yet quantitative modeling of their optically active bandgaps and absorption remains challenging...

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