Symmetry considerations in the empirical k.p Hamiltonian for the study of intermediate band solar cells

Luque López, Antonio and Mellor Null, Alexander Virgil and Antolín Fernández, Elisa and García-Linares Fontes, Pablo and Ramiro Gonzalez, Iñigo and Tobías Galicia, Ignacio and Martí Vega, Antonio (2012). Symmetry considerations in the empirical k.p Hamiltonian for the study of intermediate band solar cells. "Solar Energy Materials and Solar Cells", v. 103 ; pp. 171-183. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2012.04.015.

Description

Title: Symmetry considerations in the empirical k.p Hamiltonian for the study of intermediate band solar cells
Author/s:
  • Luque López, Antonio
  • Mellor Null, Alexander Virgil
  • Antolín Fernández, Elisa
  • García-Linares Fontes, Pablo
  • Ramiro Gonzalez, Iñigo
  • Tobías Galicia, Ignacio
  • Martí Vega, Antonio
Item Type: Article
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Date: August 2012
ISSN: 0927-0248
Volume: 103
Subjects:
Freetext Keywords: Photovoltaics; Intermediate band; Quantum Mechanics; Photon absorption; k.p model; Quantum efficiency
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

With the purpose of assessing the absorption coefficients of quantum dot solar cells, symmetry considerations are introduced into a Hamiltonian whose eigenvalues are empirical. In this way, the proper transformation from the Hamiltonian's diagonalized form to the form that relates it with Γ-point exact solutions through k.p envelope functions is built accounting for symmetry. Forbidden transitions are thus determined reducing the calculation burden and permitting a thoughtful discussion of the possible options for this transformation. The agreement of this model with the measured external quantum efficiency of a prototype solar cell is found to be excellent.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7283798NGCPVUnspecifiedA new generation of concentrator photovoltaic cells, modules and systems

More information

Item ID: 16093
DC Identifier: http://oa.upm.es/16093/
OAI Identifier: oai:oa.upm.es:16093
DOI: 10.1016/j.solmat.2012.04.015
Official URL: http://www.sciencedirect.com/science/article/pii/S0927024812001717
Deposited by: Memoria Investigacion
Deposited on: 01 Jul 2013 18:24
Last Modified: 04 Nov 2014 11:39
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