Abstract
In this paper, we have demonstrated the thermoelectric properties of Silver Zinc oxide (AgZnO) composite grown by thermal evaporation method. A mixture of Silver and Zinc powders with 1:4 ratio was evaporated on silicon substrate using a vacuum tube furnace. The grown composites were subjected to post growth annealing process at various temperatures ranging from 500 to 800 °C in a programmable muffle furnace. XRD data proved that the crystallinity of the annealed samples was improved because more and more oxygen atoms were able to fill the oxygen vacancy type defects in the host crystal of AgZnO. The observed structural behavior was also verified by Raman spectroscopy measurements. Seebeck measurements revealed a remarkable enhancement in the values of Seebeck coefficient (303–711 μV/°C) and electrical conductivity (17–176 S/cm) with annealing temperature. The high annealing temperature may cause an enhancement in the mobility of Ag atoms which resulted in the increase of Seebeck coefficient and electrical conductivity simultaneously.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
