Thermoelectric(TE)materials,capable of interconverting heat and electricity,exhibit significant promise for applications in heat harvesting and solid-state cooling.The conversion efficiency of TE materials can be asse...Thermoelectric(TE)materials,capable of interconverting heat and electricity,exhibit significant promise for applications in heat harvesting and solid-state cooling.The conversion efficiency of TE materials can be assessed using the dimensionless figure of merit,defined as zT=α^(2)σT/(κ_(L)+κ_(e)),where T,α,σ,κ_(L),κ_(e)are the absolute temperature,Seebeck coefficient,electrical conductivity,lattice thermal conductivity,and electronic thermal conductivity,respectively[1].High-performance TE materials with elevated zT values are predominantly found among compounds comprising of the elements from groups IV,V,and VI.展开更多
基金supported by JST(Japan Science and Technology Agency)Mirai Program JPMJMI19A1.Xinyuan Wang gratefully acknowledges financial support from the China Scholarship Council(CSC)supported by“Advanced Research Infrastructure for Materials and Nanotechnology in Japan(ARIM)”(No.JPMXP 1223NM5150)of the Ministry of Education,Culture,Sports,Science and Technology(MEXT).
文摘Thermoelectric(TE)materials,capable of interconverting heat and electricity,exhibit significant promise for applications in heat harvesting and solid-state cooling.The conversion efficiency of TE materials can be assessed using the dimensionless figure of merit,defined as zT=α^(2)σT/(κ_(L)+κ_(e)),where T,α,σ,κ_(L),κ_(e)are the absolute temperature,Seebeck coefficient,electrical conductivity,lattice thermal conductivity,and electronic thermal conductivity,respectively[1].High-performance TE materials with elevated zT values are predominantly found among compounds comprising of the elements from groups IV,V,and VI.
