Recent advances in high-efficiency III-V multi-junction solar cells for space applications: Ultra triple junction qualification

Hojun Yoon, Jennifer E. Granata, Peter Hebert, Richard R. King, Christopher M. Fetzer, Peter C. Colter, Kenneth M. Edmondson, Daniel Law, Geoffrey S. Kinsey, Dmitri D. Krut, James H. Ermer, Mark S. Gillanders, Nasser H. Karam

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Recent advances in Spectrolab's high efficiency III-V multi-junction space solar cells are reported. The latest generation GaInP/GaAs/Ge solar cells under production - the Ultra Triple Junction (UTJ) - have an average efficiency at maximum power of 28-0% (AM0, 28°C, 1353mW/cm2) at beginning of life (BOL), and 226% at 60° C at end of life (EOL, 15 years in GEO orbit). This represents a 55% relative higher efficiency at EOL, compared with the previous generation Improved Triple Junction (ITJ) cells. The P/P0 - for 1 MeV electrons after 1015 cm-2 fluence has also improved to 0·86, compared with 0·84 for the ITJ cells. These and other performance results of UTJ solar cells are reviewed in comparison with ITJ solar cells.

Original languageEnglish (US)
Pages (from-to)133-139
Number of pages7
JournalProgress in Photovoltaics: Research and Applications
Volume13
Issue number2
DOIs
StatePublished - Mar 1 2005
Externally publishedYes

Keywords

  • MOVPE
  • Multijunction
  • Radiation
  • Space solar cells
  • Temperature coefficients

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Recent advances in high-efficiency III-V multi-junction solar cells for space applications: Ultra triple junction qualification'. Together they form a unique fingerprint.

Cite this