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Front electrode including transparent conductive coating on patterned glass substrate for use in photovoltaic device and method of making same

  • US 8,012,317 B2
  • Filed: 04/26/2007
  • Issued: 09/06/2011
  • Est. Priority Date: 11/02/2006
  • Status: Expired due to Fees
First Claim
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1. A method of making an electrode structure for a photovoltaic device, the method comprising:

  • providing a glass substrate;

    etching and/or patterning at least one major surface of the glass substrate so as to form a textured surface of the glass substrate;

    sputter-depositing a substantially conformal front electrode on the textured surface of the glass substrate, the front electrode being substantially conformal so that both major surfaces of the front electrode are textured in a manner similar to the textured surface of the glass substrate, and wherein the substantially conformal front electrode formed on the textured surface of the glass substrate is adapted to be provided at a light incident side of a photovoltaic device; and

    determining a quantum efficiency (QE) curve for a photovoltaic device, and forming the front electrode in a manner so that a maximum transmission area of the front electrode is located under a peak area of a combination of the QE curve and a light source spectrum to be used to power the photovoltaic device.

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