Estimation of the potential performance in p-type SnSe crystals through evaluating weighted mobility and effective mass
作者机构：School of Materials Science and EngineeringBeihang UniversityBeijing100191China
出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)
年 卷 期：2020年第6卷第4期
页 面：671-676页
核心收录：
学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0701[理学-数学] 0702[理学-物理学] 070101[理学-基础数学]
基 金：the National Key Research and Development Program of China(2018YFA0702100 and 2018YFB0703600) the National Natural Science Foundation of China(51632005 and 51772012) the Beijing Natural Science Foundation(JQ18004) the Shenzhen Peacock Plan team(KQTD2016022619565991) 111 Project(B17002).L.D.Z.thanks for the support from the National Science Fund for Distinguished Young Scholars(51925101)
主 题：Thermoelectric p-type SnSe crystals Weighted mobility Quality factor Effective mass
摘 要：It has been proved that the thermoelectric performance of p-type SnSe crystals can be optimized through enhancing carrier *** calculations of electronic band structure elucidate that this approach can be interpreted by including multiple valence *** better estimate the potential performance,we proposed the transport properties for p-type SnSe crystals and analyzed the weighted mobility from the experimental *** weighted mobility approaches~600 cm^(2)V1s1 when the carrier concentration is as high as~6.31019 cm*** with obtained lattice thermal conductivity,through rising carrier concentration,the quality factor B possesses significant improvements of~235%and 138%at 300 K and 773 K,*** comparing weighted mobility and Hall mobility,two effective mass values~0.9 me and 1.8 me can be derived using carrier *** is expected that the ZT~1.0 at 300K and ZT~2.9 at 773 K can be obtained when the carrier concentration of~8.01019 cm3 and the effective mass~1.8 me were *** work provides an alternative way to comprehend the performance optimization in thermoelectric community.
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