New insights into fundamental carrier transport in type-II superlattices

基于II型超晶格（T2SL）的半导体已经成为成熟的基于HgCdTe的红外探测器的竞争对手，有望以更低的成本获得可比的性能。T2SL是一种复杂的纳米结构，具有多载流子和高度各向异性的电子输运特性，这使得它们的实验研究极具挑战性。缺乏可靠的实验数据限制了优化和建模工作，从而阻碍了进展。该项目旨在系统地研究电子输运在T2SL，实验和理论上，通过采用世界领先的迁移率谱技术在西澳大学和国家的最先进的T2SL结构，从三个世界领先的T2SL。

Type-II superlattice (T2SL) based semiconductors have emerged as a rival to well-established HgCdTe-based IR detectors, promising comparable performance at significantly lower cost. T2SLs are complex nanostructures that exhibit multiple-carrier and highly-anisotropic electronic transport properties, which renders them exceedingly challenging to study experimentally. The lack of reliable experimental data has limited optimisation and modelling efforts, and thus hampered progress. This project aims to systematically study electronic transport in T2SLs, both experimentally and theoretically, by employing world-leading mobility spectrum techniques developed at UWA and state-of-the art T2SL structures from three world leaders in T2SLs.