Abstract

Electrodeposition of solid solution films PbSe 1− x Te x (0≤ x≤1) from acid aqueous electrolytes by simultaneous cathodic reduction of Pb II, Se IV and Te IV compounds, has been investigated. It has been established that electrosynthesis of PbSe 1− x Te x proceeds at potentials more positive than the Nernst potential E Pb 2+/Pb 0 due to chemical interaction between underpotentially deposited Pb adatoms and overpotentially deposited selenium and tellurium, formed by the reduction of Se IV and Te IV anion forms. Dependence of solid solution composition on both electrolyte composition and applied electrode potential has been presented. Periodic change of cathodic polarization level of the electrode was used to produce the multilayer periodic structures PbSe/PbSe 1− x Te x with periods 2.5–10 nm.

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