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Wide-bandgap, lattice-mismatched window layer for a solar conversion device

  • US 20030145884A1
  • Filed: 01/31/2003
  • Published: 08/07/2003
  • Est. Priority Date: 10/12/2001
  • Status: Active Grant
First Claim
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1. A photovoltaic cell comprising:

  • at least one subcell, at least one of said at least one subcells having an emitter layer, said emitter layer composed of a first material having a first material lattice constant; and

    a lattice-mismatched window layer positioned directly adjacent to said emitter layer, wherein the lattice-mismatched window layer is composed of a second material having a second material lattice constant wherein said first material lattice constant and said second material lattice constant differ in material lattice constant values by at least greater than approximately 1.0%.

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