Application of photoluminescence and electroluminescence techniques to the characterization of intermediate band solar cells

Ramiro Gonzalez, Iñigo and Antolín Fernández, Elisa and García-Linares Fontes, Pablo and Hernández Martín, Estela and Martí Vega, Antonio and Luque López, Antonio and Farmer, C.D. and Stanley, Colin (2011). Application of photoluminescence and electroluminescence techniques to the characterization of intermediate band solar cells. "Energy Procedia. European Materials Research Society ConferenceSymp. Advanced Inorganic Materials and Concepts for Photovoltaics", v. 10 ; pp. 117-121. ISSN 1876-6102. https://doi.org/10.1016/j.egypro.2011.10.163.

Description

Title: Application of photoluminescence and electroluminescence techniques to the characterization of intermediate band solar cells
Author/s:
  • Ramiro Gonzalez, Iñigo
  • Antolín Fernández, Elisa
  • García-Linares Fontes, Pablo
  • Hernández Martín, Estela
  • Martí Vega, Antonio
  • Luque López, Antonio
  • Farmer, C.D.
  • Stanley, Colin
Item Type: Article
Título de Revista/Publicación: Energy Procedia. European Materials Research Society ConferenceSymp. Advanced Inorganic Materials and Concepts for Photovoltaics
Date: 2011
ISSN: 1876-6102
Volume: 10
Subjects:
Freetext Keywords: Intermediatebandsolarcell; Solarcellcharacterization; Photoluminescence; Electroluminescence
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The intermediatebandsolarcell (IBSC) is a photovoltaic device with a theoretical conversion efficiency limit of 63.2%. In recent years many attempts have been made to fabricate an intermediateband material which behaves as the theory states. One characteristic feature of an IBSC is its luminescence spectrum. In this work the temperature dependence of the photoluminescence (PL) and electroluminescence (EL) spectra of InAs/GaAs QD-IBSCs together with their reference cell have been studied. It is shown that EL measurements provide more reliable information about the behaviour of the IB material inside the IBSC structure than PL measurements. At low temperatures, the EL spectra are consistent with the quasi-Fermi level splits described by the IBSC model, whereas at room temperature they are not. This result is in agreement with previously reported analysis of the quantum efficiency of the solarcells

More information

Item ID: 11225
DC Identifier: http://oa.upm.es/11225/
OAI Identifier: oai:oa.upm.es:11225
DOI: 10.1016/j.egypro.2011.10.163
Deposited by: Memoria Investigacion
Deposited on: 04 Jul 2012 11:57
Last Modified: 20 Apr 2016 19:22
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