掺杂对多晶热电材料SnSe影响的研究进展  

A review about impact of doping on SnSe polycrystalline thermoelectric material

作　　者：廖磊[1,2] 秦霸 吕承航 黄维刚 LIAO Lei;QIN Ba;LV Cheng-hang;HUANG Wei-gang(School of Materials Science and Engineering,Xihua University,Chengdu 610039,China;College of Materials Science and Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]西华大学材料科学与工程学院,四川成都610039 [2]四川大学材料科学与工程学院,四川成都610065

出　　处：《现代化工》2020年第5期52-55,共4页Modern Chemical Industry

基　　金：2019年省级大学生创新创业训练计划项目(S201910623096);太阳能技术集成及应用推广四川省高等学校重点实验室资金项目2018年开放课题(2018TYNSYS-Z-03)。

摘　　要：综述了热电材料SnSe单晶和多晶的性能特点和研究进展。针对如何进一步提高多晶SnSe材料热电优值的问题,主要从提高功率因子、增强声子散射的角度,讨论了采用金属元素、卤素元素和稀土元素掺杂的方法来优化多晶SnSe材料的载流子浓度、降低热导率及提高电传输性能等。最后提出了通过掺杂工艺进一步提高SnSe热电性能可能遇到的挑战和需要注意的问题。The performance characteristics of mono-crystalline and polycrystalline thermoelectric material SnSe are introduced,and the research progress corresponding to this material is reviewed.To further improve the thermoelectric figure of merit of polycrystalline SnSe material from the aspects of increasing power factor and enhancing phonon scattering,this paper discusses the effect of doping polycrystalline SnSe with metal elements,halogen elements and rare earth elements on optimizing the material’s carrier concentration,reducing its thermal conductivity and improving its electric transmission performance.Finally,this paper sums up the possible challenges and the issues needing attention in improving the thermoelectric performance of SnSe through doping process.

关 键 词：热电材料 掺杂 多晶SnSe 

分 类 号：TB34[一般工业技术—材料科学与工程]