Photovoltaic Cz silicon module improvements. Annual technical progress report, November 9, 1995--November 8, 1996

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Description

Work focused on reducing the cost per watt of Cz silicon photovoltaic modules under Phase I of Siemens Solar Industries` DOE/NREL PVMaT 4A subcontract is described. Module cost components are analyzed and solutions to high-cost items are discussed in terms of specific module designs. The approaches of using larger cells and modulus to reduce per-part processing cost, and of minimizing yield loss are particularly leveraging. Yield components for various parts of the fabrication process and various types of defects are shown, and measurements of the force required to break wafers throughout the cell fabrication sequence are given. The most significant ... continued below

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42 p.

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King, R.R.; Mitchell, K.W. & Jester, T.L. February 1, 1998.

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Description

Work focused on reducing the cost per watt of Cz silicon photovoltaic modules under Phase I of Siemens Solar Industries` DOE/NREL PVMaT 4A subcontract is described. Module cost components are analyzed and solutions to high-cost items are discussed in terms of specific module designs. The approaches of using larger cells and modulus to reduce per-part processing cost, and of minimizing yield loss are particularly leveraging. Yield components for various parts of the fabrication process and various types of defects are shown, and measurements of the force required to break wafers throughout the cell fabrication sequence are given. The most significant type of yield loss is mechanical breakage. The implementation of statistical process control on key manufacturing processes at Siemens Solar Industries is described. Module configurations prototyped during Phase I of this project and scheduled to begin production in Phase II have a projected cost per watt reduction of 19%.

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42 p.

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OSTI as DE98004270

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  • Other Information: PBD: Feb 1998

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  • Other: DE98004270
  • Report No.: NREL/SR--520-24065
  • Grant Number: AC36-83CH10093
  • DOI: 10.2172/572747 | External Link
  • Office of Scientific & Technical Information Report Number: 572747
  • Archival Resource Key: ark:/67531/metadc690286

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  • February 1, 1998

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  • Aug. 14, 2015, 8:43 a.m.

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  • March 31, 2016, 3:21 p.m.

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King, R.R.; Mitchell, K.W. & Jester, T.L. Photovoltaic Cz silicon module improvements. Annual technical progress report, November 9, 1995--November 8, 1996, report, February 1, 1998; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc690286/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.