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The Zn(S,O,OH)/ZnMgO buffer in thin film Cu(In,Ga)(S,Se)2-based solar cells part I: Fast chemical bath deposition of Zn(S,O,OH) buffer layers for industrial application on co-evaporated Cu(In,Ga)Se2 and electrodeposited cuIn(S,Se)2 solar cells

  • C. Hubert
  • , N. Naghavi
  • , O. Roussel
  • , A. Etcheberry
  • , D. Hariskos
  • , R. Menner
  • , M. Powalla
  • , O. Kerrec
  • , D. Lincot
  • Centre national de la recherche scientifique
  • Institut Lavoisier de Versailles
  • Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

This paper is focused on the basic study and optimization of short time (<10min) Chemical Bath Deposition (CBD) of Zn(S,O,OH) buffer layers in co-evaporated Cu(In,Ga)Se2 (CIGSe) and electrodeposited CuIn(S,Se)2 ((ED)-CIS) solar cells for industrial applications. First, the influence of the deposition temperature is studied from theoretical solution chemistry considerations by constructing solubility diagrams of ZnS, ZnO, and Zn(OH)2 as a function of temperature. In order to reduce the deposition time under 10 min, experimental growth deposition studies are then carried out by the in situ quartz crystal microgravimetry (QCM) technique. An optimized process is performed and compared to the classical Zn(S,O,OH) deposition. The morphology and composition of'Zn(S,O,OH) films are determined using SEM and XPS techniques. The optimized process is tested on electrodeposited-CIS and co-evaporated-CIGSe absorbers and cells are completed with (Zn,Mg)O/ZnO:Al windows layers. Efficiencies similar or even better than CBD CdS/i-ZnO reference buffer layers are obtained (15.7% for CIGSe and 8.1% for (ED)-CIS).

Original languageEnglish
Pages (from-to)470-478
Number of pages9
JournalProgress in Photovoltaics: Research and Applications
Volume17
Issue number7
DOIs
Publication statusPublished - 1 Jan 2009

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Buffer layer
  • CIGSe and CIS solar cells
  • Chemical bath deposition
  • Zn(S,O,OH)

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