ELECTROCRYSTALLIZATION OF TIN IN PRESENCE OF ORGANIC ADDITIVES IN VIEW OF THE SYNTHESIS OF NIP SN MULTILAYERS/

A successful electrolytic synthesis of compositionally modulated multi layers with small sublayer thicknesses requires a planar growth mode. In that respect it was experienced that for the synthesis of NiP/Sn mu ltilayers organic additives have to be added to the tin electrolyte. H owever not all organic additives seem to be active on the P-enriched N iP sublayers, resulting in a tin island formation instead of the 2D gr owth required. In this paper several commercially available organic ad ditives are evaluated as well as ''self-composed'' ones. Potentiodynam ic polarisation and potential-time measurements during pulse current d eposition coupled with a morphological investigation by Scanning Elect ron Microscopy (SEM) and Atomic Force Microscopy (AFM) are discussed.