61 citations
- Tunis El Manar UniversityTN46 papers
- Centre National de la Recherche ScientifiqueFR18 papers
- Université Paris-SudFR10 papers
- University of CarthageTN10 papers
- National Engineering School of TunisTN9 papers
- Université de RennesFR8 papers
- Institut de Recherche en Informatique et Systèmes AléatoiresFR7 papers
- Qassim UniversitySA5 papers
- Sorbonne UniversitéFR5 papers
- Université Paris CitéFR5 papers
- University of CoimbraPT5 papers
- Laboratoire de Mathématiques d'OrsayFR4 papers
5 papers · 1 filter
Phonon-assisted exciton and trion conversion efficiency in transition metal Dichalcogenides
Sabrine Ayari, Sihem Jaziri, Robson Ferreira +1
Photoluminescence spectra, shows that monolayer Transition-metal dichalcogenides (MLTMDCs), possess charged exciton binding energies, conspicuously similar to the energy of optical…
Exciton, trion and localized exciton in monolayer Tungsten Disulfide
Aïda Hichri, Imen Ben Amara, Sabrine Ayari +1
The ultrathin transition metal dichalcogenides (TMDs) have emerged as promising materials for various applications using two dimensional (2D) semiconductors. They have attracted in…
Electric field-induced valley degeneracy lifting in uniaxial strained graphene: evidence from magnetophonon resonance
Mohamed Assili, Sonia Haddad, Woun Kang
A double peak structure in the magneto-phonon resonance (MPR) spectrum of uniaxial strained graphene, under crossed electric and magnetic fields, is predicted. We focus on the …
Quasi-bound states and continuum absorption background of polar Al0.5Ga0.5N/GaN quantum dots
D. Elmaghraoui, M. Triki, S. Jaziri M. Leroux +1
A theoretical interpretation of the photoluminescence excitation spectra of self-organized polar GaN/(Al,Ga)N quantum dots is proposed. A numerical method assuming a realistic shap…
Long-wavelength optical phonon behavior in uniaxial strained graphene: Role of electron-phonon interaction
Mohamed Assili, Sonia Haddad
We derive the frequency shifts and the broadening of point longitudinal optical (LO) and transverse optical (TO) phonon modes, due to electron-phonon interaction, in graphene u…