Memorias de investigación
Communications at congresses:
Triple-Junction Solar Cells for Ultra-High Concentrator Applications
Year:2011
Research Areas
  • Electronics engineering
Information
Abstract
After the successful implementation of a record performing dual-junction solar cell at ultra high concentration, in this paper we present the transition to a triple-junction device. The semiconductor structure of the solar cells is presented and the main changes in respect to a dual-junction design are briefly discussed. Cross-sectional TEM analysis of samples confirms that the quality of the triple-junction structures grown by MOVPE is good, revealing no trace of antiphase disorder, and showing flat, sharp and clear interfaces between the layers. Triple-junction solar cells manufactured on these structures have shown a peak efficiency of 36.2% at 700X, maintaining the efficiency over 35% from 300 to 1200 suns. With some changes in the structure and a fine tuning of its processing, efficiencies close to 40% at 1000 suns are envisaged.
International
Si
Congress
8th Spanish Conference on Electron Devices (CDE''2011),
960
Place
Palma de Mallorca
Reviewers
Si
ISBN/ISSN
978-1-4244-7865-1
Start Date
08/02/2011
End Date
11/02/2011
From page
1
To page
4
8th Spanish Conference on Electron Devices (CDE''2011),
Participants
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