A numerical study into the influence of quantum dot size on the sub-bandgap interband photocurrent in intermediate band solar cells

Mellor Null, Alexander Virgil and Luque López, Antonio and Tobías Galicia, Ignacio and Martí Vega, Antonio (2013). A numerical study into the influence of quantum dot size on the sub-bandgap interband photocurrent in intermediate band solar cells. "AIP advances", v. 3 (n. 2); pp.. ISSN 2158-3226. https://doi.org/10.1063/1.4792598.

Description

Title: A numerical study into the influence of quantum dot size on the sub-bandgap interband photocurrent in intermediate band solar cells
Author/s:
  • Mellor Null, Alexander Virgil
  • Luque López, Antonio
  • Tobías Galicia, Ignacio
  • Martí Vega, Antonio
Item Type: Article
Título de Revista/Publicación: AIP advances
Date: February 2013
ISSN: 2158-3226
Volume: 3
Subjects:
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A numerical study is presented of the sub-bandgap interband photon absorption in quantum dot intermediate band solar cells. Absorption coefficients and photocurrent densities are calculated for the valence band to intermediate band transitions using a four-band k · p method. It is found that reducing the quantum dot width in the plane perpendicular to the growth direction increases the photocurrent from the valence band to the intermediate-band ground state if the fractional surface coverage of quantum dots is conserved. This provides a path to increase the sub-bandgap photocurrent in intermediate band solar cells.

More information

Item ID: 21304
DC Identifier: http://oa.upm.es/21304/
OAI Identifier: oai:oa.upm.es:21304
DOI: 10.1063/1.4792598
Deposited by: Memoria Investigacion
Deposited on: 23 Oct 2013 16:53
Last Modified: 21 Apr 2016 11:28
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