Voltage recovery in intermediate band solar cells

García-Linares Fontes, Pablo; Martí Vega, Antonio; Antolín Fernández, Elisa; Farmer, C.D.; Ramiro Gonzalez, Iñigo; Stanley, Colin y Luque López, Antonio (2012). Voltage recovery in intermediate band solar cells. "Solar Energy Materials And Solar Cells", v. 98 ; pp. 240-244. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2011.11.015.

Descripción

Título: Voltage recovery in intermediate band solar cells
Autor/es:
  • García-Linares Fontes, Pablo
  • Martí Vega, Antonio
  • Antolín Fernández, Elisa
  • Farmer, C.D.
  • Ramiro Gonzalez, Iñigo
  • Stanley, Colin
  • Luque López, Antonio
Tipo de Documento: Artículo
Título de Revista/Publicación: Solar Energy Materials And Solar Cells
Fecha: Marzo 2012
Volumen: 98
Materias:
Palabras Clave Informales: Solar cell; Quantum dots; Intermediate band; Recombination; Concentrated light
Escuela: Instituto de Energía Solar (IES) (UPM)
Departamento: Electrónica Física
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The intermediate band solar cell (IBSC) is based on a novel photovoltaic concept and has a limiting efficiency of 63.2%, which compares favorably with the 40.7% efficiency of a conventional, single junction solar cell. It is characterized by a material hosting a collection of energy levels within its bandgap, allowing the cell to exploit photons with sub-bandgap energies in a two-step absorption process, thus improving the utilization of the solar spectrum. However, these intermediate levels are often regarded as an inherent source of supplementary recombination, although this harmful effect can in theory be counteracted by the use of concentrated light. We present here a novel, low-temperature characterization technique using concentrated light that reveals how the initially enhanced recombination in the IBSC is reduced so that its open-circuit voltage is completely recovered and reaches that of a conventional solar cell.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
FP7211640IBPOWERSin especificarIntermediate Band Materials and Solar Cells for Photovoltaics with High Efficiency and Reduced Cost

Más información

ID de Registro: 16083
Identificador DC: http://oa.upm.es/16083/
Identificador OAI: oai:oa.upm.es:16083
Identificador DOI: 10.1016/j.solmat.2011.11.015
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0927024811006295
Depositado por: Memoria Investigacion
Depositado el: 23 Jul 2013 18:43
Ultima Modificación: 31 Oct 2014 12:13
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