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Improved Laser Scribing of Transparent Conductive Oxide for Fabrication of Thin-Film Solar Module

  • Physics of Nanostructures
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Abstract

Nonuniform thickness of the front transparent conductive oxide (TCO) used for fabrication of thin-film solar module (TFSM) based on micromorphic technology affects P1 laser scribing (P1 scribing on the TCO front layer). A method for improvement of the thickness uniformity of the front TCO using modification of the existing system for gas supply of the LPCVD (TCO1200) vacuum setup with the aid of gasdistributing tubes is proposed. The thickness nonuniformity of the deposition procedure is decreased from 15.2 to 11.4% to improve uniformity of the resistance of the front TCO and light-scattering factor of TFSM. In addition, the number of P1 laser scribes with inadmissible resistance of insulation (less than 2 MΩ) is decreased by a factor of 7. A decrease in the amount of melt at the P1 scribe edges leads to an increase in the TFSM shunting resistance by 56 Ω. The TFSM output power is increased by 0.4 W due to improvement of parameters of the front TCO related to application of gas-distributing tubes.

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Authors and Affiliations

  1. OOO Khevel, Novocheboksarsk, 429952, Russia

    F. S. Egorov

  2. Ul’yanov State University, Cheboksary, 428000, Russia

    F. S. Egorov

  3. Scientific-Technical Center for Thin-Film Technologies in Power Engineering, St. Petersburg, 194064, Russia

    A. V. Kukin, E. I. Terukov & A. S. Titov

  4. Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    E. I. Terukov & A. S. Titov

Authors
  1. F. S. Egorov
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  2. A. V. Kukin
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  3. E. I. Terukov
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  4. A. S. Titov
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Corresponding author

Correspondence to A. S. Titov.

Additional information

Original Russian Text © F.S. Egorov, A.V. Kukin, E.I. Terukov, A.S. Titov, 2018, published in Zhurnal Tekhnicheskoi Fiziki, 2018, Vol. 88, No. 4, pp. 572–577.

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Egorov, F.S., Kukin, A.V., Terukov, E.I. et al. Improved Laser Scribing of Transparent Conductive Oxide for Fabrication of Thin-Film Solar Module. Tech. Phys. 63, 557–562 (2018). https://doi.org/10.1134/S1063784218040102

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  • DOI: https://doi.org/10.1134/S1063784218040102

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