Low-temperature spray-pyrolysis of FeS2 films and their electrical and optical properties

I. G. Orletskii, P. D. Mar’yanchuk, E. V. Maistruk, M. N. Solovan, V. V. Brus

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Iron disulfide (FeS2) films with a wide range of electrical resistivities 100 Ω cm ⩽ ρ ⩽ 800 kΩ cm, a high adhesion to the substrate, and a resistance to aggressive media have been prepared by the spray pyrolysis of aqueous solutions of the salts FeCl3 · 6H2O and (NH2)2CS at low temperatures in the range 250°C ⩽ TS ⩽ 400°C. It has been found that the FeS2 films have a high transmittance T ≈ 60–70% and are characterized by a sharp transmission edge. It has been shown that the optical band gap for direct (Eg op = 2.19–2.78 eV) and indirect (Eg ′op = 1.26–1.36 eV) optical transitions depends on the conditions of film preparation.

Original languageEnglish
Pages (from-to)37-41
Number of pages5
JournalPhysics of the Solid State
Volume58
Issue number1
DOIs
Publication statusPublished - Jan 1 2016
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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