Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Degradation of subcells and tunnel junctions during growth of GaInP/Ga(In)As/GaNAsSb/Ge 4-junction solar cells
Year:2017
Research Areas
  • Semiconductors ii-vi, iii-v and iv-iv,
  • Solar cells
Information
Abstract
A GaInP/Ga(In)As/GaNAsSb/Ge 4J solar cell grown using the combined MOVPE + MBE method is presented. This structure is used as a test bench to assess the effects caused by the integration of subcells and tunnel junctions into the full 4J structure. A significant degradation of the Ge bottom subcell emitter is observed during the growth of the GaNAsSb subcell, with a drop in the carrier collection efficiency at the high energy photon range that causes a ~15% lower Jsc and a Voc drop of ~50 mV at 1-sun. The Voc of the GaNAsSb subcell is shown to drop by as much as ~140 mV at 1-sun. No degradation in performance is observed in the tunnel junctions, and no further degradation is neither observed for the Ge subcell during the growth of the GaInP/Ga(In)As subcells. The hindered efficiency potential in this lattice-matched 4J architecture due to the degradation of the Ge and GaNAsSb subcells is discussed.
International
Si
JCR
Si
Title
Progress in Photovoltaics
ISBN
1062-7995
Impact factor JCR
6,726
Impact info
Volume
25
10.1002/pip.2930
Journal number
11
From page
887
To page
895
Month
SIN MES
Ranking
Participants
  • Autor: Ivan Garcia Vara (UPM)
  • Autor: Mario Ochoa Gómez (UPM)
  • Autor: Ivan Lombardero Hernandez (UPM)
  • Autor: Luis Cifuentes Baro (UPM)
  • Autor: Manuel Hinojosa Arner (UPM)
  • Autor: Pablo Caño Fernández (UPM)
  • Autor: Ignacio Rey-Stolle Prado (UPM)
  • Autor: Carlos Algora Del Valle (UPM)
  • Autor: A, Johnson
  • Autor: I. Davies
  • Autor: K. H. Tan
  • Autor: W. K. Loke
  • Autor: S. Wicaksono
  • Autor: S. F. Yoon
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
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)