Surface Treatment of CuInGaSe2 Thin Films and Its Effect on the Photovoltaic Properties of Solar Cells

K. Ramanathan, F. S. Hasoon, S. Smith, D. L. Young, M. A. Contreras, P. K. Johnson, A. O. Pudov, J. R. Sites

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77 Scopus Citations

Abstract

Solar cells have been fabricated with partial electrolyte treatments of CuInGaSe2 (CIGS) thin film absorbers in lieu of a CdS layer. Treatment of the absorbers in a Cd or Zn containing solution is shown to produce conditions under which efficient solar cells can be fabricated. A similar effect is also observed in CuInGaSSe2 (CIGSS) graded band gap absorbers. These observations can be explained by the ability of Cd and Zn to produce n-type doping or inversion in the surface region. We also provide a brief review of similar work done elsewhere and identify directions for future investigations.

Original languageAmerican English
Pages (from-to)1495-1498
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume64
Issue number9-10
DOIs
StatePublished - 2003

Bibliographical note

For preprint version, including full text online document, see NREL/CP-520-32950

NREL Publication Number

  • NREL/JA-520-35475

Keywords

  • A. Thin films

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