Litcius/Paper detail

Unveiling the complex phonon nature and phonon cascades in 1L to 5L WSe<sub>2</sub> using multiwavelength excitation Raman scattering

Claire Blaga, Ángel Labordet Álvarez, Akshay Balgarkashi, Mitali Banerjee, Anna Fontcuberta i Morral, Mirjana Dimitrievska

2024Nanoscale Advances12 citationsDOIOpen Access PDF

Abstract

We unveil the complex phonon dynamics of WSe 2 by using multiwavelength excitation Raman spectroscopy and report phonon-cascades for all WSe 2 flake thicknesses, indicating strong phonon–electron interactions during early carrier relaxation processes.

Topics & Concepts

PhononExcitationRaman scatteringRaman spectroscopyScatteringCondensed matter physicsPhysicsMaterials scienceMolecular physicsOpticsQuantum mechanics2D Materials and ApplicationsChalcogenide Semiconductor Thin FilmsOrganic and Molecular Conductors Research