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Photovoltaic devices and compositions for use therein

  • US 6,559,372 B2
  • Filed: 09/20/2001
  • Issued: 05/06/2003
  • Est. Priority Date: 09/20/2001
  • Status: Expired due to Term
First Claim
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1. An apparatus, comprisinga semiconductor absorber layer defining a first surface and a second surface;

  • and an electrode layer coupled to the first surface of the semiconductor absorber layer, wherein the semiconductor absorber layer includes a collection layer that is located closer to the first surface than to the second surface, wherein the collection layer includes a sodium impurity containing layer, wherein the sodium impurity containing layer includes sodium containing precipitates and wherein the sodium containing precipitates include NaInSe2.

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