Multifold enhancements in thermoelectric power factor in isovalent sulfur doped bismuth antimony telluride films
Materials Research Bulletin(2021)
摘要
•Up to four-fold increase in power factor in sputter-deposited Bi0.5Sb1.5Te3 films.•Near surface S doping increased electrical conductivity and seebeck coefficient.•Isovalent impurities doping into pnictogen chalcogenides yields high power factor.
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关键词
Thermoelectric,Bismuth antimony telluride,Ion implantation,Sulfur doping,Power factor
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