26ème Congrès Général de la SFP

Excitons and phonons in low dimensional heterostructures

Non programmé

20m

Centre des Congrès de la Villette (Cité des sciences et de l'Industrie, Paris)

Poster MC19 Hétérostructures et interfaces de basse dimensionnalité Session Poster 1: MC3, MC5, MC6, MC11, MC13, MC15, MC16, MC18, MC19, MC25, REDP, posters hors MC

Orateur

Claudio ATTACCALITE (CNRS/CINaM Aix-Marseille Université)

Description

In this poster I will present some recent advances in exciton-phonon coupling in low-dimensional systems. I will describe the role of dimensionality in the formation of excitons and their interaction with vibrational modes. I will show how this interaction leads to a finite lifetime for excitons and the appearance of phonon-assisted replicas in the luminescence spectra. Results will be presented for hexagonal boron nitride and molybdenum disulfide.

Reference:
1) Temperature Dependence of the Optical Response in MoS2
F. Paleari, C. Attaccalite, D. Sangalli, et al., in preparation (2023)

2)First-principles study of luminescence in hexagonal boron nitride single layer: Exciton-phonon coupling and the role of substrate,
Pierre Lechifflart, Fulvio Paleari, Davide Sangalli, and Claudio Attaccalite, Phys. Rev. Mat. 7, 024006 (2023)

Documents de présentation

poster_BNW2023.pdf