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The nonequilibrium Green's function picture of inelastic processes in nanostructure photovoltaics.(Report)

Aeberhard, Urs

Journal of Computational Electronics, 2016, Vol.15(4), p.1219(14) [Periódico revisado por pares]

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  • Título:
    The nonequilibrium Green's function picture of inelastic processes in nanostructure photovoltaics.(Report)
  • Autor: Aeberhard, Urs
  • Assuntos: Solar Energy Industry ; Quantum Wells
  • É parte de: Journal of Computational Electronics, 2016, Vol.15(4), p.1219(14)
  • Descrição: To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1007/s10825-016-0877-3 Byline: Urs Aeberhard (1) Keywords: Photovoltaics; NEGF; Phonons; Photons Abstract: We discuss within the nonequilibrium Green's function formalism the self-consistent Born approximation of the electronic self-energy for concurrent coupling of charge carriers to photons and phonons. The expansion of the charge carrier Green's function is shown to provide a description for a range of physical processes with relevance for the photovoltaic device operation, such as indirect optical transitions, thermally assisted photocarrier escape from quantum wells or phonon-mediated interband transfer in tunnel junctions. The nonequilibrium Green's function picture of these processes is reviewed with focus on the evolution of the system towards the steady state in the convergence of the self-consistency iteration process and on the impact of inelastic scattering on device operation. Author Affiliation: (1) IEK-5 Photovoltaik, Forschungszentrum Julich, 52425, Julich, Germany Article History: Registration Date: 21/07/2016 Online Date: 11/08/2016
  • Idioma: Inglês

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