Investigating the potential of AgZnO thin film composites for waste heat recovery using Seebeck data

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dc.contributor.authorJacob, Jolly
dc.contributor.authorUllah, Inaam
dc.contributor.authorBen Farhat, Lamia
dc.contributor.authorETAL..
dc.date.accessioned2024-06-04T07:29:01Z
dc.date.available2024-06-04T07:29:01Z
dc.date.issued2022-04-13
dc.descriptionHuman beings are facing numerous issues and shortage of energy is the most critical. The reasons behind increasing demands of electrical energy are many including continually increasing population, industrialization, limited fossil fuel reservoirs, increasing fuel costs, environmental contamination and global warming due to burning of fossil fuels etc. [[1], [2], [3], [4], [5], [6]]. To overcome these energy deficiencies research community need to develop facile, low cost, renewable and green energy resources. Among the adopted renewable energy resources e.g. hydropower, solar energy, wind energy, nuclear energy, etc. Among them, thermoelectricity is the finest source of energy production due to its simple, low cost and maintenance free energy conversion system [[7], [8], [9], [10], [11], [12], [13], [14], [15], [16]].
dc.description.abstractIn 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. © 2022 Elsevier B.V. keywords: AgZnO composites; Seebeck coefficient; Thermal evaporation; Thermoelectric properties; XRD
dc.identifier.citationUllah, I., Jacob, J., Al-Harbi, F. F., Mahmood, K., Ali, A., Tamseel, M., ... & Ali, M. Y. (2022). Investigating the potential of AgZnO thin film composites for waste heat recovery using Seebeck data. Optical Materials, 127, 112318.
dc.identifier.doihttps://doi.org/10.1016/j.optmat.2022.112318
dc.identifier.urihttps://dspace.adu.ac.ae/handle/1/5616
dc.language.isoen
dc.publisherElsevier
dc.titleInvestigating the potential of AgZnO thin film composites for waste heat recovery using Seebeck data
dc.typeArticle

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