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Back contact device for photovoltaic cells and method of manufacturing a back contact device

  • US 20080072953A1
  • Filed: 09/25/2007
  • Published: 03/27/2008
  • Est. Priority Date: 09/27/2006
  • Status: Abandoned Application
First Claim
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1. A method for fabricating an all-back contact photovoltaic cell, said method including:

  • depositing a semiconductor layer on a non-opaque substrate;

    increasing a level of crystallinity of said semiconductor layer by exposing said semiconductor layer to a focused beam of energy;

    doping said semiconductor layer with first and second dopants on a side of said semiconductor layer to create at least two doped regions in said semiconductor layer; and

    providing electrical contacts to said doped regions by depositing a conductive layer on said side of said semiconductor layer so that said electrical contacts are on said side of said semiconductor layer and incident light strikes said semiconductor layer from an opposing side.

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