Correlation Between Bands Structure and Quantum Magneto Transport Properties in InAs/GaxIn1−xSb Type II Superlattice for Infrared Detection

Frontiers in Physics

关键词: bands structure;    quantum magneto transport;    Shubnikov-de Haas effect;    density of states;    InAs/GaxIn1-xSb superlattice;    infrared detection;   

DOI  :  10.3389/fphy.2020.00052

来源: DOAJ

【 摘 要 】

We have used the envelope function formalism to investigate the bands structure of LWIR type II SL InAs (d1 = 2. 18d2)/In0.25Ga0.75Sb(d2 = 21.5 Å). Thus, we extracted optical and transport parameters as the band gap, cut off wavelength, carriers effective mass, Fermi level and the density of state. Our results show that the higher optical cut-off wavelength can be achieved with smaller layer thicknesses. The semiconductor-semi metal transition was studied as a function of temperature. Our results permit us the interpretations of Hall and Shubnikov-de Haas effects. These results are in agreement with experimental results in literature and a guide for engineering infrared detectors.

【 授权许可】

Unknown