Memorias de investigación
Artículos en revistas:
Voltage recovery in intermediate band solar cells
Año:2012
Áreas de investigación
  • Ingenierías,
  • Ingeniería eléctrica, electrónica y automática,
  • Dispositivos electrónicos,
  • Células solares
Datos
Descripción
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.
Internacional
Si
JCR del ISI
Si
Título de la revista
Solar Energy Materials And Solar Cells
ISSN
0927-0248
Factor de impacto JCR
4,542
Información de impacto
Volumen
98
DOI
10.1016/j.solmat.2011.11.015
Número de revista
Desde la página
240
Hasta la página
244
Mes
SIN MES
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física