Vapor phase epitaxial growth of FeS2 pyrite and evaluation of the carrier collection in liquid-junction solar cell

A. Ennaoui, G. Schlichthörl, S. Fiechter, H. Tributsch

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19 Citations (Scopus)

Abstract

Photoactive epitaxial layers of FeS2 were grown using bromine as a transport agent and a simple closed ampoule technique. The substrates used were (100)-oriented slices of natural pyrite 1 mm thick. A vapor-liquid-solid (VLS) growth mechanism was elucidated by means of optical microscopy. Macrosteps, terrace surfaces and protuberances are often accompanied with the presence of liquid FeBr3 droplets. In the absence of a liquid phase growth hillocks are found. Localized photovoltaic response for the evaluation of carrier collection using a scanning laser spot system has been used to effectively locate and characterize non-uniformities present in the epitaxial thin films.

Original languageEnglish
Pages (from-to)169-178
Number of pages10
JournalSolar Energy Materials and Solar Cells
Volume25
Issue number1-2
DOIs
Publication statusPublished - 1992
Externally publishedYes

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ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Engineering(all)

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