Observatorio de I+D+i UPM

Memorias de investigación
Book chapters:
Intermediate Band Solar Cells
Research Areas
  • Electric engineers, electronic and automatic (eil),
  • Electronic devices,
  • Materials for electric engineering and electronics,
  • Solar cells,
  • Technology of devices for engineering
The intermediate band solar cell is a novel photovoltaic device with a theoretical efficiency limit of 63.2%. Its potential relies on the capability of increasing the photogenerated current without reducing the output voltage. To realize this concept in practice, it is necessary to synthesize an intermediate band material, that is, a new kind of semiconductor with a third electronic band within the bandgap. In this material, electronic populations in all three bands should be split at room temperature (i.e., split quasi-Fermi levels) and nonradiative recombination rates should not be high. Currently, two approaches are being investigated: self-assembled quantum dot arrays and impurity-doped semiconductors. Prototypes containing quantum dots behave as intermediate band solar cells at low temperature, but to date their properties fail at room temperature. Impurity-doped materials exhibit promising optical properties and researchers are currently working on reducing their nonradiative recombination rates.
Book Edition
Book Publishing
Photovoltaic Solar Energy
Book title
Comprehensive Renewable Energy
From page
To page
  • Autor: Elisa Antolin Fernandez (UPM)
  • Autor: Antonio Marti Vega (UPM)
  • 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)