Research paperTheoreticalComputed RamanContribution to Excitonic Linewidth from Free Carrier–Exciton Scattering in Layered Materials: The example of h-BNM. F. C. Martins Quintela, N. M. R. PeresPreprints·2022·10.3390/preprints202207.08787·arXiv:2207.08787AbstractScattering of excitons by free carriers is a phenomena which is especially important when considering moderately to heavily doped semiconductors in low temperature experiments, where the interaction of excitons with acoustic and optical phonons is reduced. In this paper, we consider the scattering of excitons by free carriers in monolayer hexagonal Boron Nitride encapsulated by a dielectric medium. We describe the excitonic states by variational wave functions, modeling the electrostatic interaction via the Rytova–Keldysh potential. Making the distinction between elastic and inelastic scattering, the relevance of each transition between excitonic states is also considered. Finally, we discuss the contribution of free carrier scattering to the excitonic linewidth, analyzing both its temperature and carrier density dependence.Read more
Monolayer h-BN encapsulated by a dielectric medium, modeled with fused quartz as the surrounding dielectric environment.2 propertiesSimulatedh-BNStudied MaterialSiO₂Substrate / DielectricExpand
Research paperTheoreticalComputed RamanContribution to Excitonic Linewidth from Free Carrier–Exciton Scattering in Layered Materials: The example of h-BNM. F. C. Martins Quintela, N. M. R. PeresPreprints·2022·10.3390/preprints202207.08787·arXiv:2207.08787AbstractScattering of excitons by free carriers is a phenomena which is especially important when considering moderately to heavily doped semiconductors in low temperature experiments, where the interaction of excitons with acoustic and optical phonons is reduced. In this paper, we consider the scattering of excitons by free carriers in monolayer hexagonal Boron Nitride encapsulated by a dielectric medium. We describe the excitonic states by variational wave functions, modeling the electrostatic interaction via the Rytova–Keldysh potential. Making the distinction between elastic and inelastic scattering, the relevance of each transition between excitonic states is also considered. Finally, we discuss the contribution of free carrier scattering to the excitonic linewidth, analyzing both its temperature and carrier density dependence.Read more
Monolayer h-BN encapsulated by a dielectric medium, modeled with fused quartz as the surrounding dielectric environment.2 propertiesSimulatedh-BNStudied MaterialSiO₂Substrate / DielectricExpand
Research paperTheoreticalComputed RamanContribution to Excitonic Linewidth from Free Carrier–Exciton Scattering in Layered Materials: The example of h-BNM. F. C. Martins Quintela, N. M. R. PeresPreprints·2022·10.3390/preprints202207.08787·arXiv:2207.08787AbstractScattering of excitons by free carriers is a phenomena which is especially important when considering moderately to heavily doped semiconductors in low temperature experiments, where the interaction of excitons with acoustic and optical phonons is reduced. In this paper, we consider the scattering of excitons by free carriers in monolayer hexagonal Boron Nitride encapsulated by a dielectric medium. We describe the excitonic states by variational wave functions, modeling the electrostatic interaction via the Rytova–Keldysh potential. Making the distinction between elastic and inelastic scattering, the relevance of each transition between excitonic states is also considered. Finally, we discuss the contribution of free carrier scattering to the excitonic linewidth, analyzing both its temperature and carrier density dependence.Read more
Monolayer h-BN encapsulated by a dielectric medium, modeled with fused quartz as the surrounding dielectric environment.2 propertiesSimulatedh-BNStudied MaterialSiO₂Substrate / DielectricExpand
Research paperTheoreticalComputed RamanContribution to Excitonic Linewidth from Free Carrier–Exciton Scattering in Layered Materials: The example of h-BNM. F. C. Martins Quintela, N. M. R. PeresPreprints·2022·10.3390/preprints202207.08787·arXiv:2207.08787AbstractScattering of excitons by free carriers is a phenomena which is especially important when considering moderately to heavily doped semiconductors in low temperature experiments, where the interaction of excitons with acoustic and optical phonons is reduced. In this paper, we consider the scattering of excitons by free carriers in monolayer hexagonal Boron Nitride encapsulated by a dielectric medium. We describe the excitonic states by variational wave functions, modeling the electrostatic interaction via the Rytova–Keldysh potential. Making the distinction between elastic and inelastic scattering, the relevance of each transition between excitonic states is also considered. Finally, we discuss the contribution of free carrier scattering to the excitonic linewidth, analyzing both its temperature and carrier density dependence.Read more
Monolayer h-BN encapsulated by a dielectric medium, modeled with fused quartz as the surrounding dielectric environment.2 propertiesSimulatedh-BNStudied MaterialSiO₂Substrate / DielectricExpand
