First-principles calculations of bismuth induced changes in the band structure of dilute Ga–V–Bi and In–V–Bi alloys: chemical trends versus experimental data

MP Polak, P Scharoch… - … Science and Technology, 2015 - iopscience.iop.org
Bi-induced changes in the band structure of Ga–V–Bi and In–V–Bi alloys are calculated
within the density functional theory (DFT) for alloys with Bi≤ 3.7% and the observed …

Localization effects and band gap of GaAsBi alloys

AR Mohmad, F Bastiman, CJ Hunter… - … status solidi (b), 2014 - Wiley Online Library
The structural and optical properties of GaAs1− xBix alloys for x up to 0.108 have been
investigated by high resolution X‐ray diffraction and photoluminescence (PL). At room …

Effect of Bi alloying on the hole transport in the dilute bismide alloy GaAsBi

RN Kini, AJ Ptak, B Fluegel, R France, RC Reedy… - Physical Review B, 2011 - APS
We studied the effect of Bi incorporation on the hole mobility in the dilute bismide alloy GaAs
1− x Bi x using electrical transport (Hall) and photoluminescence (PL) techniques. Our …

Temperature dependence of band gaps in dilute bismides

WM Linhart, R Kudrawiec - Semiconductor Science and …, 2018 - iopscience.iop.org
Abstract Knowledge about the temperature dependence of the fundamental band-gap
energy of semiconductors is very important and constitutes the basis for developing …

Experimental and theoretical studies of band gap alignment in GaAs1− xBix/GaAs quantum wells

R Kudrawiec, J Kopaczek, MP Polak… - Journal of Applied …, 2014 - pubs.aip.org
Band gap alignment in GaAs 1− x Bi x/GaAs quantum wells (QWs) was studied
experimentally by photoreflectance (PR) and theoretically, ab initio, within the density …

[HTML][HTML] Carrier dynamics in (Ga, In)(Sb, Bi)/GaSb quantum wells for laser applications in the mid-infrared spectral range

E Rogowicz, J Kopaczek, MP Polak, O Delorme… - Scientific Reports, 2022 - nature.com
We present experimental studies on low-temperature (T= 4.2 K) carrier dynamics in (Ga,
In)(Sb, Bi)/GaSb quantum wells (QWs) with the nominal In content of 3.7% and the Bi …

[HTML][HTML] Assessing the nature of the distribution of localised states in bulk GaAsBi

T Wilson, NP Hylton, Y Harada, P Pearce… - Scientific Reports, 2018 - nature.com
A comprehensive assessment of the nature of the distribution of sub band-gap energy states
in bulk GaAsBi is presented using power and temperature dependent photoluminescence …

Temperature dependence of the band gap of GaSb1− xBix alloys with 0< x≤ 0.042 determined by photoreflectance

J Kopaczek, R Kudrawiec, WM Linhart… - Applied Physics …, 2013 - pubs.aip.org
GaSb 1− x Bi x layers with 0< x≤ 0.042 have been studied by photoreflectance in 15–290 K
temperature range. We found that due to the incorporation of Bi atoms into the GaSb host …

Enhancement of photoluminescence of GaAsBi quantum wells by parabolic design of AlGaAs barriers

S Pūkienė, M Karaliūnas, A Jasinskas… - …, 2019 - iopscience.iop.org
Influence of barrier material and structure on carrier quantum confinement in GaAsBi
quantum wells (QWs) is studied comprehensively. Single-and multi-QW structures were …

Optical properties of GaAsBi/GaAs quantum wells: Photoreflectance, photoluminescence and time-resolved photoluminescence study

J Kopaczek, WM Linhart, M Baranowski… - Semiconductor …, 2015 - iopscience.iop.org
Abstract Photoreflectance (PR), photoluminescence (PL) and time-resolved PL were applied
to study the optical properties, particularly the localized and delocalized states and carrier …