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ECS Meeting 2004
Paper
Technique for producing "good" GaAs solar cells using poor-quality substrates
Abstract
Relatively good GaAs solar cells can be made from poor-quality substrates by making the junction deep (≳1 μ) instead of shallow and by "leaching" both the pGaAs and nGaAs regions during the growth process. AM0 efficiencies of 14.7% (19% AM1) have been obtained from substrates with starting substrate diffusion lengths of 0.6 μ.
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