High Efficiency Al0.22Ga0.78As Solar Cells Grown by Molecular Beam Epitaxy

  • M. R. Melloch
  • , S. P. Tobin
  • , C. Bajgar
  • , A. Keshavarzi
  • , T. B. Stellwag
  • , G. B. Lush
  • , M. S. Lundstrom
  • , K. Emery

Research output: Contribution to journalArticlepeer-review

7 Scopus Citations

Abstract

The quality of pn junction photodetectors made of Al0.2Ga 0.8As has been investigated as a first step in the optimization of tandem solar cells. We have obtained 1 sun AM1.5 efficiencies of 16.1% for 0.25 cm2 Al0.22Ga0.78As solar cells fabricated from molecular beam epitaxy (MBE) material. This efficiency is 3.2 percentage points higher than the previously best reported efficiency of 12.9% for an Al 0.2Ga0.8As solar cell fabricated from MBE material.

Original languageAmerican English
Pages (from-to)52-54
Number of pages3
JournalApplied Physics Letters
Volume57
Issue number1
DOIs
StatePublished - 1990

Bibliographical note

Work performed by School of Electrical Engineering, Purdue University, West Lafayette, Indiana; Spire Corporation, Bedford, Massachusetts; and Solar Energy Research Institute, Golden, Colorado

NLR Publication Number

  • ACNR/JA-213-11601

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