Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/80350
Título: | Contribution to excitonic linewidth from free carrier–exciton scattering in layered materials: the example of hBN |
Autor(es): | Quintela, Maurício F. C. Martins Peres, N. M. R. |
Palavras-chave: | exciton linewidth free carrier monolayer scattering temperature screening hexagonal boron nitride variational |
Data: | 5-Ago-2022 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Applied Sciences |
Citação: | Quintela, M.F.C.M.; Peres, N.M.R. Contribution to Excitonic Linewidth from Free Carrier–Exciton Scattering in Layered Materials: The Example of hBN. Appl. Sci. 2022, 12, 7872. https://doi.org/10.3390/app12157872 |
Resumo(s): | Scattering of excitons by free carriers is a phenomenon, 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/80350 |
DOI: | 10.3390/app12157872 |
e-ISSN: | 2076-3417 |
Versão da editora: | https://www.mdpi.com/2076-3417/12/15/7872 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | PHYSICS OF QUANTUM MATERIALS AND BIONANOSTRUCTURES (2018 - ...) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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applsci-12-07872-v2.pdf | 451 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons