Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Improvements in the MOVPE growth of multi-junction solar cells for very high concentration
Year:2007
Research Areas
  • Electronics engineering
Information
Abstract
The present work presents some lines of research aimed to contribute to a better performance of multi-junction solar cells at very high concentrations (1000 suns) by minimising the series resistance of these devices. In the first section, a set of results is presented to ascertain the potential of tellurium as a possible n-type dopant to improve the performance of tunnel junctions and/or the top cell emitter. Some anomalies in the incorporation of Te into GaInP are described and their impact on solar cell growth and operation is discussed. In the second section, the contribution of the bottom cell BSF layer to the series resistance is analyzed by comparing three different alternatives, namely p++ GaAs; pGaInP; and p++Al0.2Ga0.8As. BSFs made of moderately doped GaInP are demonstrated to contribute significantly to the series resistance of the device, whilst p++GaAs layers are shown to produce lower photocurrents. On the other hand, p++Al0.2Ga0.8 As layers are shown to unite both high photocurrents and low series resistance, being thus the optimum option.
International
Si
JCR
Si
Title
J CRYST GROWTH
ISBN
0022-0248
Impact factor JCR
1,95
Impact info
Volume
298
Journal number
0
From page
762
To page
766
Month
ENERO
Ranking
Participants
  • Autor: Beatriz Galiana Blanco (UPM)
  • Autor: Ignacio Rey-Stolle Prado (UPM)
  • Autor: Ivan Garcia Vara (UPM)
  • Autor: Carlos Algora Del Valle (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Semiconductores III-V
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
S2i 2019 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)