Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Modelling of lattice matched dilute nitride 4-junction concentrator solar cells on Ge substrates
Year:2016
Research Areas
  • Technologies of integration for engineering and electronics,
  • Solar cells
Information
Abstract
Technology Computer Aided Design modeling is used to examine the performance under light concentration of a 4-J solar cell Ge-based that includes a 1-eV MBE-grown dilute nitride subcell. The 1-eV solar cell is modeled and examined by using material parameters extracted from detailed electro-optical characterization prior to be included into a multijunction structure. The modelling reveals the impact of the electric field-assisted collection in the performance of single junction solar cells and its effect when included in a 4-Junction solar cells. This effect is responsible for the lower FF (~15% lower) in the 4J when including the dilute nitride subcell, especially if it limits the photocurrent. Finally, an optimization procedure based on dilute nitrides with higher material quality is performed resulting in a 4-Junction solar cell with an efficiency of 47% for concentrations between 1000-2000 suns direct terrestrial spectrum.
International
Si
Congress
12th International Conference on Concentrator Photovoltaic Systems (CPV-12)
960
Place
Freiburg, Germany
Reviewers
Si
ISBN/ISSN
978-0-7354-1424-2
10.1063/1.4962101
Start Date
25/04/2016
End Date
27/04/2016
From page
800031
To page
800037
AIP Conference Proceedings - Vol. 1766
Participants
  • Autor: Mario Ochoa Gómez (UPM)
  • Autor: Ivan Garcia Vara (UPM)
  • Autor: Ivan Lombardero Hernandez (UPM)
  • Autor: Luna Ayllon Lazaro (UPM)
  • Autor: Ignacio Rey-Stolle Prado (UPM)
  • Autor: Carlos Algora Del Valle (UPM)
  • Autor: A.D. Johnson
  • Autor: J.I. Davies
  • Autor: K.H. Tan
  • Autor: W.K. Loke
  • Autor: S. Wicaksono
  • Autor: S.F. Yoon
  • Autor: E. Ochoa
  • Autor: M. Gabás
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Semiconductores III-V
  • Departamento: Electrónica Física
  • Centro o Instituto I+D+i: Instituto de Energía Solar
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)
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