Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Voltage recovery in intermediate band solar cells
Year:2012
Research Areas
  • Engineering,
  • Electric engineers, electronic and automatic (eil),
  • Electronic devices,
  • Solar cells
Information
Abstract
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.
International
Si
JCR
Si
Title
Solar Energy Materials And Solar Cells
ISBN
0927-0248
Impact factor JCR
4,542
Impact info
Volume
98
10.1016/j.solmat.2011.11.015
Journal number
From page
240
To page
244
Month
SIN MES
Ranking
Participants
  • Autor: Pablo Garcia-Linares Fontes (UPM)
  • Autor: Antonio Marti Vega (UPM)
  • Autor: Elisa Antolin Fernandez (UPM)
  • Autor: C.D. Farmer
  • Autor: Iñigo Ramiro Gonzalez (UPM)
  • Autor: C. Stanley
  • Autor: Antonio Luque Lopez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)