GaAsBi: from molecular beam epitaxy growth to devices

RD Richards, NJ Bailey, Y Liu… - … status solidi (b), 2022 - Wiley Online Library
GaAsBi has been researched as a candidate material for optoelectronic devices for around
two decades. Bi‐induced localized states induce a rapid rising of the valence band edge …

Photoinduced tunability of the reststrahlen band in

BT Spann, R Compton, D Ratchford, JP Long… - Physical Review B, 2016 - APS
Materials with a negative dielectric permittivity (eg, metals) display high reflectance and can
be shaped into nanoscale optical resonators exhibiting extreme mode confinement, a …

Surface effects of vapour-liquid-solid driven Bi surface droplets formed during molecular-beam-epitaxy of GaAsBi

JA Steele, RA Lewis, J Horvat, MJB Nancarrow… - Scientific reports, 2016 - nature.com
Abstract Herein we investigate a (001)-oriented GaAs1− x Bi x/GaAs structure possessing Bi
surface droplets capable of catalysing the formation of nanostructures during Bi-rich growth …

Dilute GaAs1− xBix epilayers with different bismuth concentrations grown by Molecular Beam Epitaxy: A promising candidate for gamma radiation sensor applications

AA Alhassni, JF Felix, JFR Marroquin, S Alhassan… - Applied Surface …, 2023 - Elsevier
Radiation interaction studies are very important for exploring the technological applications
of new materials in radiation environments. This work reports the effect of gamma radiation …

Role of defects in tailoring the structural, electrical and optical properties of Schottky diodes based on GaAsBi alloy through gamma radiation

S Alhassan, JF Felix, JFR Marroquin… - Materials Science in …, 2024 - Elsevier
This work provides an extensive study of the influence of γ-rays on structural, electrical, and
optical characteristics of GaAsBi Schottky diodes fabricated through Molecular Beam Epitaxy …

Increasing Optical Efficiency in the Telecommunication Bands of Strain-Engineered Alloys

E Tisbi, E Placidi, R Magri, P Prosposito, R Francini… - Physical Review …, 2020 - APS
The search for semiconducting materials with improved optical properties relies on the
possibility to manipulate the semiconductors band structure by using quantum confinement …

Raman and AFM studies on nominally undoped, p-and n-type GaAsBi alloys

A Erol, E Akalin, K Kara, M Aslan… - Journal of Alloys and …, 2017 - Elsevier
We study structural properties and surface formation of undoped, n-and p-type doped
GaAsBi alloys with various bismuth compositions using Micro-Raman, Fourier Transform …

[HTML][HTML] GaAs1− yBiy Raman signatures: illuminating relationships between the electrical and optical properties of GaAs1− yBiy and Bi incorporation

J Li, K Forghani, Y Guan, W Jiao, W Kong, K Collar… - AIP Advances, 2015 - pubs.aip.org
We report the use of two Raman signatures, the Bi-induced longitudinal-optical-plasmon-
coupled (LOPC) mode and the GaAs Fröhlich scattering intensity, present in nominally …

Raman spectroscopic determination of hole concentration in undoped GaAsBi

S Zhu, W Qiu, H Wang, T Lin, P Chen… - Semiconductor Science …, 2018 - iopscience.iop.org
Raman spectra of undoped GaAs 1− x Bi x (0< x< 0.037) grown on GaAs by molecular beam
epitaxy were investigated. With an increase of Bi component, we find that the longitudinal …

Increased dephasing length in heavily doped GaAs

J Duan, C Wang, L Vines, L Rebohle… - New Journal of …, 2021 - iopscience.iop.org
Ion implantation of S and Te followed by sub-second flash lamp annealing with peak
temperature about 1100 C is employed to obtain metallic n++-GaAs layers. The electron …