Kinetics of hydrochemical deposition of PbSe films in the presence of ascorbic acid

Abstract

The boundary conditions of the formation of PbSe and concomitant impurity phases, Pb(OH)₂ and PbCN₂, were determined by calculation of the ionic equilibria in the Pb²⁺–Na₃C₅Н₆О₇–CH₄N₂Se system. Complex kinetic studies of the PbSe deposition from an ammonia–citrate mixture containing ascorbic acid as antioxidant for selenourea were performed. PbSe films 250 to 425 nm thick were synthesized by the hydrochemical method based on the results obtained. The absence of impurities in the deposited samples was confirmed by X-ray diffraction analysis.