Thermoelectric Properties of Off-Stoichiometric Bi2Te2Se Compounds

被引：5

作者：

Kim, Bong-Seo ^{[1
]}

Lee, Goeun ^{[2
]}

Lim, Hye-Jin ^{[1
]}

Jang, Jeongin ^{[1
]}

Lee, Ji Eun ^{[1
]}

Min, Bok-Ki ^{[1
]}

Joo, Sung-Jae ^{[1
]}

Park, Sungjin ^{[1
]}

Ryu, Byung-Ki ^{[1
]}

Lee, Ho Seong ^{[3
]}

机构：

[1] Korea Electrotechnol Res Inst, Energy Convers Res Ctr, Chang Won 51543, South Korea

[2] Korea Natl Univ Transportat, Cent Lab, Chungju 27469, South Korea

[3] Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2020年 / 49卷 / 09期

关键词：

Bi2Te2Se; thermoelectric properties; off-stoichiometry; scattering mode; TOPOLOGICAL INSULATOR; ELECTRONIC-STRUCTURE; CONDUCTIVITY; PERFORMANCE; ALLOYS;

D O I：

10.1007/s11664-020-08258-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report the thermoelectric characterization of off-stoichiometric Bi2Te2Se compounds fabricated with high energy ball milling followed by spark plasma sintering. Among the investigated off-stoichiometric Bi2Te2Se compounds, Bi(2)Te(1.95)Se(1.05)showed a peakZTof 0.76 at 523 K. We observed the scattering mode change in Bi(2)Te(1.95)Se(1.05)compounds. From our results, the off-stoichiometric Bi2Te2Se compounds can be applied asn-type material for power generation at elevated temperature.

引用

页码：5308 / 5316

页数：9

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