CAJ | 학술논문

在介绍热电材料的背景、发展历史、主要应用的基础上，概括了目前提高热电材料性能的方法。主要包括：通过态密度共振和能带简并来提高Seebeck系数；通过元素掺杂、纳米结构和多晶晶界等方法对声子进行全方位散射来降低晶格热导率；通过基体和纳米第二相的能带对齐来维持电传输性能；使用本征低热导率材料等。最后对热电材料的研究进行了总结和展望。
재개소열전재료적배경、발전역사、주요응용적기출상，개괄료목전제고열전재료성능적방법。주요포괄：통과태밀도공진화능대간병래제고Seebeck계수；통과원소참잡、납미결구화다정정계등방법대성자진행전방위산사래강저정격열도솔；통과기체화납미제이상적능대대제래유지전전수성능；사용본정저열도솔재료등。최후대열전재료적연구진행료총결화전망。
In this paper, we summary the thermoelectric history, background, applications and the approaches to enhance the ther-moelectric performance. Several approaches to enhance ZT have emerged in the last decade, such as modifying the band structure and band convergence to enhance Seebeck coefficients, nanostructuring and all-scale hierarchical architecturing to reduce the lattice ther-mal conductivity, aligning band energy between nano-precipitate/matrix to maintain hole mobility. Alternatively, one can seek high performance in pristine thermoelectric materials with intrinsically low thermal conductivity, which is a promising method to find poten-tial thermoelectric materials. Finally, a discussion of future possible strategies is proposed to aim at further enhancing the thermoelec-tric figure of merit of thermoelectric materials.