Semiconductor characterization by terahertz excitation spectroscopy

A Krotkus, I Nevinskas, R Norkus - Materials, 2023 - mdpi.com
Surfaces of semiconducting materials excited by femtosecond laser pulses emit
electromagnetic waves in the terahertz (THz) frequency range, which by definition is the 0.1 …

Complementary SEM-AFM of swelling Bi-Fe-O film on HOPG substrate

D Sobola, S Ramazanov, M Konečný, F Orudzhev… - Materials, 2020 - mdpi.com
The objective of this work is to study the delamination of bismuth ferrite prepared by atomic
layer deposition on highly oriented pyrolytic graphite (HOPG) substrate. The samples' …

THz-excitation spectroscopy technique for band-offset determination

V Karpus, R Norkus, B Čechavičius, A Krotkus - Optics Express, 2018 - opg.optica.org
The experimental THz-excitation spectroscopy technique for determining heterojunction
band offsets is suggested. When photoexcited electrons gain sufficient energy to pass the …

Optical functions and critical points of dilute bismide alloys studied by spectroscopic ellipsometry

ZL Bushell, RM Joseph, L Nattermann… - Journal of Applied …, 2018 - pubs.aip.org
Critical point transition energies and optical functions of the novel GaAs-based dilute
bismide alloys GaAsBi, GaNAsBi, and GaPAsBi were determined using spectroscopic …

Large-scale atomistic simulations demonstrate dominant alloy disorder effects in multiple quantum wells

M Usman - Physical Review Materials, 2018 - APS
Bismide semiconductor materials and heterostructures are considered a promising
candidate for the design and implementation of photonic, thermoelectric, photovoltaic, and …

Tunable bandgap and isotropic light absorption from bismuth-containing GaAs core–shell and multi-shell nanowires

M Usman - Nanoscale, 2020 - pubs.rsc.org
Semiconductor core–shell nanowires based on the GaAs substrate are the building blocks
of many photonic, photovoltaic and electronic devices, thanks to their associated direct …

[PDF][PDF] Dielectrophoresis Control of Semiconductor Nanowires for Sensing Technology

S Laumier - 2023 - core.ac.uk
Semiconductor nanowires (NWs) synthesis successes have given keys to unprecedented
nano-scale sensitivity opening up new opportunities in device applications. NWs' potential …

A first-principles study of the vibrational and thermodynamic properties of GaBixAs1-x alloys

YH Shen, Y Yu, XG Kong, J Deng, XF Tian… - Indian Journal of …, 2022 - Springer
Studies on GaAsBi-based devices have been deeply carried out in recent years, strongly
driven by their excellent performance. Despite the growing interest in GaAsBi, the systematic …

Atomistic tight binding study of quantum confined Stark effect in GaBixAs1− x/GaAs quantum wells

M Usman - Journal of Physics: Condensed Matter, 2019 - iopscience.iop.org
Recently, there has been tremendous research interest in novel bismide semiconductor
materials (such as GaBi x As 1− x) for wavelength-engineered, low-loss optoelectronic …

GaAsBi Synthesis: From Band Structure Modification to Nanostructure Formation

KN Collar - 2017 - search.proquest.com
Research and development bismides have proven bismides to be a promising field for
material science with important applications in optoelectronics. However, the development …