화학공학소재연구정보센터
Journal of the Electrochemical Society, Vol.164, No.4, D192-D195, 2017
Electrochemical Formation of p-Type Bi0.5Sb1.5Te3 Thick Films onto Nickel
Bismuth-telluride-based alloys are currently the best commercially available thermoelectric materials for applications at room temperatures. Up to 150 micron thick layers of bismuth antimony telluride (Bi0.5Sb1.5Te3) were directly deposited onto nickel by either potenstiostatic or potentiodynamic electrodeposition. Cyclic voltammetry was employed to identify the optimal deposition potential. The films were characterized by scanning electron microscopy, energy dispersive X-rays and X-ray diffraction. The p-type films were found to be well adherent, uniform and stoichiometric with a high power factor of 2.3 x 10(-4) W m(-1) K-2 at film growth rates of up to 40 mu m h(-1). (C) The Author(s) 2017. Published by ECS. All rights reserved.