典型文献
Synergistically enhanced thermoelectric properties of Bi2S3 bulk materials via Cu interstitial doping and BiCl3 alloying
文献摘要：
Bi2S3 is composed of inexpensive and environ-mental friendliness elements,which has received extensive interests and been investigated as a promising mid-tempera-ture thermoelectric material for years.Even pure Bi2S3 pos-sesses a high Seebeck coefficient and low thermal conductivity,its low electrical conductivity leads to a low figure of merit(ZT)value.In this work,Bi2S3 fabricated by solid-state melting combined with spark plasma sintering can significantly enhance the thermoelectric performance via introducing small amounts of Cu and BiCl3.Cu interstitial doping and Cl substitution on S site result in a large increase in electrical conductivity.Additionally,the enhanced phonon scattering is derived from the point defects caused by element doping,the grain boundaries,and the small amount of sec-ondary phase,which leads to the low thermal conductivity.Finally,a high ZT value of 0.7 is obtained at 773 K and reaches a large average ZT of 0.36 in the temperature range from room temperature(RT)to 773 K for the Cu-interstitial-dopedandBiCl3-alloyed(Cu0.01Bi2S3+0.175 mol％BiCl3)sample.Furthermore,the mechanical properties of the Cu0.01Bi2S3+0.175 mol％BiCl3 sample are lower than those of other Bi2S3 samples,which stem from the weak chemical bonding strength.
文献关键词：
中图分类号：
作者姓名：
Jun Guo;Zi-Yuan Wang;Yu-Ke Zhu;Lin Chen;Jing Feng;Zhen-Hua Ge
作者机构：
Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China
文献出处：
引用格式：
[1]Jun Guo;Zi-Yuan Wang;Yu-Ke Zhu;Lin Chen;Jing Feng;Zhen-Hua Ge-.Synergistically enhanced thermoelectric properties of Bi2S3 bulk materials via Cu interstitial doping and BiCl3 alloying)[J].稀有金属（英文版）,2022(03):931-941
A类：
dopedandBiCl3,01Bi2S3+0
B类：
Synergistically,enhanced,thermoelectric,properties,bulk,materials,via,interstitial,doping,alloying,composed,inexpensive,environ,mental,friendliness,elements,which,received,extensive,interests,been,investigated,promising,mid,years,Even,pure,sesses,high,Seebeck,coefficient,thermal,conductivity,its,electrical,leads,figure,merit,ZT,value,In,this,work,fabricated,by,solid,state,melting,combined,spark,plasma,sintering,significantly,performance,introducing,small,amounts,substitution,site,result,large,increase,Additionally,phonon,scattering,derived,from,point,defects,caused,grain,boundaries,sec,ondary,phase,Finally,obtained,reaches,average,temperature,range,room,alloyed,Cu0,Furthermore,mechanical,are,lower,than,those,other,samples,stem,weak,chemical,bonding,strength
AB值：
0.531873
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
