Preparation of ZnS thin films by the pulsed electrochemical deposition

Abstract

We deposited ZnS thin films on Sn-doped In 2O 3-coated glass substrate using normal and pulsed electrochemical deposition (ECD) from aqueous solutions containing Na 2S 2O 3 and ZnSO 4 with two different compositions. Generally, the films deposited using pulsed deposition has much better surface morphology and optical properties than those deposited by normal ECD. The film deposited from the ZnSO 4-rich solution was of stoichiometric composition and after 300 °C annealing gives high transparency.