Nonlinear optical activities in two-dimensional gallium sulfide: a comprehensive study

S Ahmed, PK Cheng, J Qiao, W Gao, AM Saleque… - ACS …, 2022 - ACS Publications
The nonlinear optical (NLO) properties of two-dimensional (2D) materials are fascinating for
fundamental physics and optoelectronic device development. However, relatively few …

Two-dimensional gallium sulfide as a novel saturable absorber for broadband ultrafast photonics applications

S Ahmed, J Qiao, PK Cheng, AM Saleque… - … Applied Materials & …, 2021 - ACS Publications
Two-dimensional (2D) gallium sulfide (GaS) offers a plethora of exceptional electrical and
optical properties, allowing it to be used in a wide range of applications, including …

Selective Electron–Phonon Coupling in Dimerized 1T-TaS2 Revealed by Resonance Raman Spectroscopy

SLLM Ramos, BR Carvalho, RL Monteiro Lobato… - ACS …, 2023 - ACS Publications
The layered transition-metal dichalcogenide material 1T-TaS 2 possesses successive phase
transitions upon cooling, resulting in strong electron–electron correlation effects and the …

Exploring the thickness-dependence of the properties of layered gallium sulfide

Y Gutiérrez, MM Giangregorio, S Dicorato… - Frontiers in …, 2021 - frontiersin.org
Group III layered monochalcogenide gallium sulfide, GaS, is one of the latest additions to the
two-dimensional (2D) materials family, and of particular interest for visible-UV optoelectronic …

Plasmon-enhanced Raman spectroscopy of two-dimensional semiconductors

M Rahaman, DRT Zahn - Journal of Physics: Condensed Matter, 2022 - iopscience.iop.org
Abstract Two-dimensional (2D) semiconductors have grown fast into an extraordinary
research field due to their unique physical properties compared to other semiconducting …

Raman and far-infrared synchrotron nanospectroscopy of layered crystalline talc: Vibrational properties, interlayer coupling, and symmetry crossover

R Longuinhos, AR Cadore, HA Bechtel… - The Journal of …, 2023 - ACS Publications
Talc is an insulating layered material that is stable at ambient conditions and has high-
quality basal cleavage, which is a major advantage for its use in van der Waals …

A Systematic Study of the Temperature Dependence of the Dielectric Function of GaSe Uniaxial Crystals from 27 to 300 K

LV Le, TT Nguyen, XA Nguyen, DD Cuong, TH Nguyen… - Nanomaterials, 2024 - mdpi.com
We report the temperature dependences of the dielectric function ε= ε 1+ i ε 2 and critical
point (CP) energies of the uniaxial crystal GaSe in the spectral energy region from 0.74 to …

Interplay between thickness, defects, optical properties, and photoconductivity at the centimeter scale in layered GaS

S Dicorato, Y Gutiérrez, MM Giangregorio, F Palumbo… - Nanomaterials, 2022 - mdpi.com
From the group-III monochalcogenide (MX, M= Ga, In; X= S, Se, Te) layered semiconductors,
gallium monosulfide, GaS, has emerged as a promising material for electronics …

Symmetry-enforced metal-insulator transition and topological adiabatic charge pump in sliding bilayers of threefold symmetric materials

S Bravo, PA Orellana, L Rosales - Physical Review B, 2024 - APS
Sliding bilayers are systems that exploit the possibility of two relatively translating
monolayers along a specific direction in real space, such that different stackings could be …

Temperature-and power-dependent phonon properties of suspended few layers of tungsten diselenide

BC Viana, RS Alencar, AG Vieira, V Carozo… - Vibrational …, 2020 - Elsevier
In this study we report the temperature-and laser power-dependence of the out-of-plane A
1g Raman mode of mechanically exfoliated few-layered WSe 2 suspended on Si 3 N 4 …