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High Power Efficiency Polycrystalline CdTe Thin Film Semiconductor Photovoltaic Cell Structures for Use in Solar Electricity Generation

  • US 20110139249A1
  • Filed: 12/10/2010
  • Published: 06/16/2011
  • Est. Priority Date: 12/10/2009
  • Status: Abandoned Application
First Claim
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1. A photovoltaic device, comprising:

  • a first layer comprising tellurium (Te) and cadmium (Cd);

    a second layer comprising Cd and Te over the first layer;

    a third layer comprising Cd, Zn and Te over the second layer;

    a fourth layer comprising Zn and Te over the third layer; and

    a superstrate below the first layer or over the fourth layer.

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