Thermoelectric Characteristics of Bulk Cr2Te3 with Low Lattice Thermal Conductivity

被引：0
|
作者：
Shin, Donghyun [1 ,2 ]
Kim, Hyunji [1 ,2 ]
Kahiu, Joseph Ngugi [1 ,2 ]
Kihoi, Samuel Kimani [2 ]
Lee, Ho Seong [1 ,2 ,3 ]
机构：
[1] Kyungpook Natl Univ, Sch Mat Sci & Engn, 80 Daehak Ro, Daegu 41566, South Korea
[2] Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehak Ro, Daegu 41566, South Korea
[3] Kyungpook Natl Univ, Res Inst Automative Parts & Mat, 80 Daehak Ro, Daegu 41566, South Korea
来源：
ELECTRONIC MATERIALS LETTERS | 2025年 / 21卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
Chromium telluride; Metal chalcogenide; Thermoelectric; Lattice thermal conductivity; Layered structure; PERFORMANCE; BI2TE3; ALLOYS; FIGURE; POWER; SB;
D O I：
10.1007/s13391-024-00523-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, we aimed to synthesize bulk Cr2Te3 and evaluate its thermoelectric properties. Previously, Cr2Te3 with a layered structure has primarily been synthesized in thin film form for studies that focused on its magnetic properties. The intrinsic layered structure of Cr2Te3 can contributes to its low lattice thermal conductivity. Our experimental results confirmed the successful synthesis of a homogeneous single-phase specimen and revealed a significantly low lattice thermal conductivity of 0.31 W/mK at 673 K. Additionally, we explored the substitution of titanium and germanium at chromium sites as a method to enhance thermoelectric performance, achieving a notable increase in the power factor. [GRAPHICS] .
引用
收藏
页码：70 / 78
页数：9
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