典型文献
Improved thermoelectric properties of zone-melted p-type bismuth-telluride-based alloys for power generation
文献摘要:
Zone-melted bismuth-telluride-based alloys(ZM-BT)are extensively applied to manufacture commercial thermo-electric power generators(TEG).Optimizing the average figure of merit(zT)during 300-500 K of ZM-BT is favorable for improving the conversion efficiency of common TEGs,and manipulating point defects is the pri-mary approach to reduce their relatively high lattice ther-mal conductivity(κ1)and enhance thermoelectric properties further.Se/Te alloying has been confirmed effective for traditional n-type Bi2Te3 compound,while Se alloying in p-type counterparts is rarely reported.Herein,to further reduce κ1,we introduce Se alloying into p-type Bi0.3Sb1.7Te3 to enhance the scattering of high-frequency phonons.Combined with the carrier concentration adjust-ment via excess Te doping,a high average zT~0.75 between 300 and 500 K was obtained,22%higher than that of the pristine ingot.
文献关键词:
中图分类号:
作者姓名:
Ren-Shuang Zha;Tie-Jun Zhu
作者机构:
State Key Laboratory of Silicon Materials,School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China;Thermoelectricity Technology Center,Hangzhou Dahe Thermo-Magnetics Co.Ltd,Hangzhou 310053,China
文献出处:
引用格式:
[1]Ren-Shuang Zha;Tie-Jun Zhu-.Improved thermoelectric properties of zone-melted p-type bismuth-telluride-based alloys for power generation)[J].稀有金属(英文版),2022(05):1490-1495
A类:
3Sb1,7Te3
B类:
Improved,thermoelectric,properties,zone,melted,type,bismuth,telluride,alloys,power,generation,Zone,ZM,BT,extensively,applied,manufacture,commercial,generators,Optimizing,average,figure,merit,zT,during,favorable,improving,conversion,efficiency,common,TEGs,manipulating,point,defects,mary,approach,reduce,their,relatively,lattice,mal,conductivity,enhance,further,Se,alloying,has,been,confirmed,effective,traditional,Bi2Te3,compound,while,counterparts,rarely,reported,Herein,introduce,into,Bi0,scattering,frequency,phonons,Combined,carrier,concentration,adjust,ment,via,excess,doping,between,was,obtained,higher,than,that,pristine,ingot
AB值:
0.621178
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