Pulsed electrodeposition of (Bi1-xSbx)2Te3 thermoelectric thin films

(Bi1-xSbx)2Te3 thermoelectric thin films were deposited on stainless steel discs in 1 M perchloric acid and 0.1 M tartaric acid by pulse electrodeposition in order to optimize the grain growth. The influence of the electrolyte composition, the cathodic current density and the cathodic pulse time on film stoichiometry were studied. The results show that it is necessary to increase the Sb content in the electrolyte to obtain the (Bi0.25Sb0.75)2Te3...