Effect of Deposition Time on Structural and Morphological Properties of Electrodeposited Bismuth Telluride (Bi2Te3) Thin Films

Abstract

Present work deals with the temporal electrodeposition of Bi₂Te₃ thin films. Structural, elemental and surface morphological analysis of deposited films has been caused out using XRD and SEM with EDXs techniques. XRD contributes the formation of Bi₂Te₃ crystals with crystalline size in the range of 3 nm to 9 nm. EDXS is in agreement with X-ray diffractometer and confirms the qualitative formation of Bi₂Te₃ in the stoichiometry of 2:3. Scanning electron microscope reveals the influence of the deposition time over the evolution of spherical morphology with increasing diameters of the Bi₂Te₃ particles in the deposited films.