Potassium ferrate aqueous solution as a reagent for the synthesis of nanolayers via the successive ionic layer deposition method. Synthesis of Cu0.9FeO x ·nH2O

Abstract

Layers of Cu0.9FeOx·nH2O have been synthesized at the surfaces of fused quartz and single-crystal silicon using K2FeO4 aqueous solutions. The layer of hydrated amorphous binary copper(II)–iron(III) oxide is formed at the surface, the particles size being of 10–50 nm and the thickness increasing with the number of the successive ionic layer deposition (SILD) cycles. The following experimental techniques have been used: scanning electron microscopy, X-ray spectral microanalysis, X-ray diffraction analysis, UV spectroscopy, IR spectroscopy, and X-ray photoelectron spectroscopy.