Final Report Metadata

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  • Main Title Final Report


  • Author: Tao, Dr. Meng
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization


  • Name: The University of Texas at Arlington
    Place of Publication: United States


  • Creation: 2010-12-22


  • English


  • Content Description: The objective of this DOE SAI project is to demonstrate the feasibility of electrodeposited and solution-doped transparent conducting oxides (TCOs) such as zinc oxide with resistivity in the mid-10{sup -4} {Omega}-cm range. The target application is an 'on-top' TCO which can be deposited on semiconductors in thin-film and future solar cells including amorphous silicon, copper indium gallium selenide and emerging solar cells. There is no solution-prepared on-top TCO currently used in commercial solar cells. This project, if successful, will fill this gap. Our technical objectives include electrodeposited TCOs with (1) resistivity in the mid-10{sup -4} {Omega}-cm range, (2) post-deposition annealing below 300 C and (3) no-vacuum processing or low-vacuum processing. All the three research objectives listed above have been accomplished in the 14-month period from July 1, 2009 through September 30, 2010. The most noticeable accomplishments of this project are (1) identification of a terawatt-scale dopant for zinc oxide, i.e. yttrium, whose known reserve is enough for 60 peak terawatts of thin-film solar cells; (2) demonstration of a record-low resistivity, 6.3 x 10{sup -5} {Omega}-cm, in solution-deposited zinc oxide with an abundant dopant; and (3) the record-low resistivity was accomplished with a maximum process temperature of 300 C and without vacuum annealing. Industrial applications of the new yttrium-doped zinc oxide are being pursued, including (1) green deposition of yttrium-doped zinc oxide to reduce water consumption during deposition and (2) search for an industrial partner to develop an electrochemical tool for large-area uniform deposition of yttrium-doped zinc oxide.


  • Keyword: Copper
  • Keyword: Gallium Selenides
  • Keyword: Oxides
  • Keyword: Solar Cells
  • Keyword: Yttrium
  • Keyword: Processing
  • Keyword: Deposition
  • Keyword: Thin Films
  • Keyword: Annealing
  • Keyword: Targets
  • STI Subject Categories: 14 Solar Energy
  • Keyword: Water
  • Keyword: Indium
  • Keyword: Zinc Oxides
  • Keyword: Silicon


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Report No.: DE-EE0000577
  • Grant Number: EE0000577
  • DOI: 10.2172/1000525
  • Office of Scientific & Technical Information Report Number: 1000525
  • Archival Resource Key: ark:/67531/metadc833903