In this study, p-type Bi0.5Sb1.5Te3based nanocomposites with addition of different weight percentages of Ga2O3nanoparticles are fabricated by mechanical milling and spark plasma sintering. The fracture surfaces of all Bi0.5Sb1.5Te3nanocomposites exhibited similar grain distribution on the entire fracture surface. The Vickers hardness is improved for the Bi0.5Sb1.5Te3nanocomposites with 6 wt% added Ga2O3due to exhibiting fine microstructure, and dispersion strengthening mechanism. The Seebeck coefficient of Bi0.5Sb1.5Te3nanocomposites are significantly improved owing to the decrease in carrier concentration. The electrical conductivity is decreased rapidly upon the addition of Ga2O3nanoparticle due to increasing carrier scattering at newly formed interfaces. The peak power factor of 3.24 W/mK2is achieved for the base Bi0.5Sb1.5Te3sintered bulk. The Bi0.5Sb1.5Te3nanocomposites show low power factor than base sample due to low electrical conductivity.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.