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Cu(In,Ga)Se 2 -based solar cells prepared from Se-containing precursors

Vacuum, ISSN: 0042-207X, Vol: 102, Page: 26-30
2014
  • 32
    Citations
  • 0
    Usage
  • 19
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    32
    • Citation Indexes
      32
  • Captures
    19

Article Description

In this paper, we prepared the CIGS thin films with various [Cu]/[In + Ga] ratios by selenization of Cu 0.8 Ga 0.2 and In 2 Se 3 precursor films. The properties of Cu(In,Ga)Se 2 film and related solar cell were investigated. Raman spectra confirm that the secondary Cu 2−x Se phase tends to segregate at film surface. SEM results show that the grain-size improves noticeably with the increase of the [Cu]/[In + Ga] ratios. For Cu-rich CIGS films, the performances of the related solar cells were damaged greatly and good photovoltaic characteristics cannot be obtained. For near-stoichiometric and Cu-poor films, the mean conversion efficiency close to 10% was achieved over a wide range of composition.

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