Restructured single parabolic band model for quick analysis in thermoelectricity

查看全文 作　　者：Jianbo [1]Zhu;Xuemei [2,3]Zhang;Muchun [1]Guo;Jingyu [2]Li;Jinsuo [1]Hu;Songting [4]Cai;Wei [1]Cai;Yongsheng [2]Zhang;Jiehe [1]Sui

机构地区：[1]National Key Laboratory for Precision Hot Processing of Metals,Harbin Institute of Technology,Harbin,China;[2]Key Laboratory of Materials Physics,Institute of Solid State Physics,Chinese Academy of Sciences,Hefei,China;[3]Science Island Branch of Graduate School,University of Science and Technology of China,Hefei,China;[4]Department of Materials Science and Engineering,Northwestern University,Evanston,IL,USA

出　　处：《npj Computational Materials》索引2021年第1期,共8页

基　　金：J.S.acknowledges financial support from the National Natural Science Foundation of China(Nos.51771065 and 51871082);the Natural Science Foundation of Heilongjiang Province of China(No.ZD2020E003);Y.Z.acknowledges financial support from the National Natural Science Foundation of China(Grant No.11774347). 摘　　要：The single parabolic band(SPB)model has been widely used to preliminarily elucidate inherent transport behaviors of thermoelectric(TE)materials,such as their band structure and electronic thermal conductivity,etc.However,in the SPB calculation,it is necessary to determine some intermediate variables,such as Fermi level or the complex Fermi-Dirac integrals.In this work,we establish a direct carrier-concentration-dependent restructured SPB model,which eliminates Fermi-Dirac integrals and Fermi level calculation and emerges stronger visibility and usability in experiments.We have verified the reliability of such restructured model with 490 groups of experimental data from state-of-the-art TE materials and the relative error is less than 2%.Moreover,carrier effective mass,intrinsic carrier mobility and optimal carrier concentration of these materials are systematically investigated.We believe that our work can provide more convenience and accuracy for thermoelectric data analysis as well as instructive understanding on future optimization design. 关键词：PARABOLIC FERMI instru

相关文献

参考文献（55）
引证文献（1）
耦合文献（38）

参考文献(55)

引证文献(1)

耦合文献(38)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Restructured single parabolic band model for quick analysis in thermoelectricity

参考文献(55)

引证文献(1)

耦合文献(38)

用户提示