Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/72417
Título: | Exciton-photon interactions in semiconductor nanocrystals: Radiative rransitions, non-radiative processes and environment effects |
Autor(es): | Burdov, Vladimir A. Vasilevskiy, Mikhail |
Palavras-chave: | nanocrystal quantum dot light-matter interaction energy transfer 2D material |
Data: | 2021 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Applied Sciences |
Resumo(s): | In this review, we discuss several fundamental processes taking place in semiconductor nanocrystals (quantum dots (QDs)) when their electron subsystem interacts with electromagnetic (EM) radiation. The physical phenomena of light emission and EM energy transfer from a QD exciton to other electronic systems such as neighbouring nanocrystals and polarisable 3D (semi-infinite dielectric or metal) and 2D (graphene) materials are considered. In particular, emission decay and FRET rates near a plane interface between two dielectrics or a dielectric and a metal are discussed and their dependence upon relevant parameters is demonstrated. The cases of direct (II–VI) and indirect (silicon) band gap semiconductors are compared. We cover the relevant non-radiative mechanisms such as the Auger process, electron capture on dangling bonds and interaction with phonons. Some further effects, such as multiple exciton generation, are also discussed. The emphasis is on explaining the underlying physics and illustrating it with calculated and experimental results in a comprehensive, tutorial manner. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/72417 |
DOI: | 10.3390/app11020497 |
e-ISSN: | 2076-3417 |
Versão da editora: | https://www.mdpi.com/2076-3417/11/2/497 |
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-11-00497-v2.pdf | 1,81 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons