Interband absorption of photons by extended states in intermediate band solar cells

Luque López, Antonio; Mellor Null, Alexander Virgil; Ramiro Gonzalez, Iñigo; Antolín Fernández, Elisa; Tobías Galicia, Ignacio y Martí Vega, Antonio (2013). Interband absorption of photons by extended states in intermediate band solar cells. "Solar Energy Materials And Solar Cells", v. 115 ; pp. 134-144. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2013.03.008.

Descripción

Título: Interband absorption of photons by extended states in intermediate band solar cells
Autor/es:
  • Luque López, Antonio
  • Mellor Null, Alexander Virgil
  • Ramiro Gonzalez, Iñigo
  • Antolín Fernández, Elisa
  • Tobías Galicia, Ignacio
  • Martí Vega, Antonio
Tipo de Documento: Artículo
Título de Revista/Publicación: Solar Energy Materials And Solar Cells
Fecha: Agosto 2013
Volumen: 115
Materias:
Palabras Clave Informales: Intermediate band solar cell; Quantum dot; Absorption coefficient
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Electrónica Física
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This paper considers sub-bandgap photon absorption in an InAs/GaAs quantum dot matrix. Absorption coefficients are calculated for transitions from the extended states in the valence band to confined states in the conduction band. This completes a previous body of work in which transitions between bound states were calculated. The calculations are based on the empirical k·p Hamiltonian considering the quantum dots as parallelepipeds. The extended states may be only partially extended?in one or two dimensions?or extended in all three dimensions. It is found that extended-to-bound transitions are, in general, weaker than bound-to-bound transitions, and that the former are weaker when the initial state is extended in more coordinates. This study is of direct application to the research of intermediate band solar cells and other semiconductor devices based on light absorption in semiconductors nanostructured with quantum dots.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
FP7283798NGCPVSin especificarA new generation of concentrator photovoltaic cells, modules and systems

Más información

ID de Registro: 26091
Identificador DC: http://oa.upm.es/26091/
Identificador OAI: oai:oa.upm.es:26091
Identificador DOI: 10.1016/j.solmat.2013.03.008
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0927024813001219
Depositado por: Memoria Investigacion
Depositado el: 19 May 2014 19:12
Ultima Modificación: 01 Ago 2015 22:56
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