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PHOTOVOLTAIC DEVICES AND METHOD OF MAKING

  • US 20140326315A1
  • Filed: 05/02/2013
  • Published: 11/06/2014
  • Est. Priority Date: 05/02/2013
  • Status: Active Grant
First Claim
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1. A photovoltaic device, comprising:

  • a layer stack; and

    an absorber layer disposed on the layer stack, wherein the absorber layer comprises selenium, and wherein an atomic concentration of selenium varies across a thickness of the absorber layer,wherein the photovoltaic device is substantially free of a cadmium sulfide layer.

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