Room temperature carrier kinetics in the W-type GaInAsSb/InAs/AlSb quantum well structure emitting in mid-infrared spectral range

M. Syperek*, K. Ryczko, M. Dallner, M. Dyksik, M. Motyka, M. Kamp, S. Höfling, J. Misiewicz, G. Sȩk

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Room temperature carrier kinetics has been investigated in the type-II W-design AlSb/InAs/Ga0:80In0:20As0:15Sb0:85/InAs/AlSb quantum well emitting in the mid-infrared spectral range (at 2.54 μm). A timeresolved reflectance technique, employing the non-degenerated pump-probe scheme, has been used as a main experimental tool. Based on that, a primary carrier relaxation time of 2:3 ± 0:2 ps has been found, and attributed to the initial carrier cooling process within the quantum well states, while going towards the ground state via the carrier-optical phonon scattering mechanism. The decay of a quasi-equilibrium carrier population at the quantum well ground states is primarily governed by two relaxation channels: (i) radiative recombination within distribution of spatially separated electrons and holes that occurs in the nanosecond time scale, and (ii) the hole tunnelling out of its confining potential, characterized by a 240 ± 10 ps time constant.

Original languageEnglish
Title of host publicationActa Physica Polonica A
Subtitle of host publicationProceedings of the 45th International School and Conference on the Physics of Semiconductors “Jaszowiec” 2016, Szczyrk, Poland, 18-24 June, 2016
EditorsMaciej Sawicki, Bartłomiej S. Witkowski
PublisherInstitute of Physics, Polish Academy of Sciences
Pages1224-1228
Number of pages5
Volume130
DOIs
Publication statusPublished - 1 Nov 2016
Event45th International School and Conference on the Physics of Semiconductors “Jaszowiec” 2016, - Szczyrk, Poland
Duration: 18 Jun 201624 Jun 2016
Conference number: 45
https://www.jaszowiec.edu.pl/2016/about

Conference

Conference45th International School and Conference on the Physics of Semiconductors “Jaszowiec” 2016,
Abbreviated titleJaszowiec
Country/TerritoryPoland
CitySzczyrk
Period18/06/1624/06/16
Internet address

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