Structural, electrical, and optical properties of Zn-In-Sn-O films for silicon heterojunction solar cells

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3 Citations (Scopus)

Abstract

We investigated the structural, optical, and electrical properties of Zn-In-Sn-O (ZITO) films prepared by RF magnetron sputtering for silicon heterojunction solar cells. The effects of Zn addition on the properties of the as-grown films were examined. XRD patterns of the ZITO films deposited at room temperature showed a broad peak. The cross-sectional TEM image of ZITO films at low Zn levels exhibited a typical fine or nanostructure embedded in an amorphous phase. On the other hand, at higher Zn addition, the films exhibited a completely amorphous phase. The carrier concentration decreased with increasing Zn content. The lowest electrical resistivity of 5.5 × 10-4 Ω cm was observed for a ZITO film with 4.83 Zn at.%. All ZITO films grown in this study showed transmittance of over 80% in the visible and near-infrared spectral range. The absorption was less than 5% in the visible region.

Original languageEnglish
Pages (from-to)233-237
Number of pages5
JournalThin Solid Films
Volume589
DOIs
Publication statusPublished - 2015 Aug 31

Bibliographical note

Funding Information:
This work was supported by the Human Resources Development program ( No. 20124030200120 ) and by the New & Renewable Energy ( No. 20133010011770 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), grant funded by the Korea government, Ministry of Trade, Industry and Energy . Also, this work was supported by the Korea University grant.

Publisher Copyright:
© 2015 Elsevier B.V.

Keywords

  • Magnetron sputtering
  • Silicon solar cell
  • Transparent conducting oxide
  • Zinc indium tin oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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