J. Korean Ceram. Soc. > Volume 52(1); 2015 > Article
 Journal of the Korean Ceramic Society 2015;52(1): 1. doi: https://doi.org/10.4191/kcers.2015.52.1.1
 Bi-Te계 열전소재 연구 동향 이규형, 김종영1, 최순목2 강원대학교 나노응용공학과1한국세라믹기술원 이천분원2한국기술교육대학교 에너지신소재화학공학부 Recent Progress in Bi-Te-based Thermoelectric Materials Kyu Hyoung Lee, Jong-Young Kim1, Soon-Mok Choi2 Department of Nano Applied Engineering, Kangwon National University1Icheon Branch, Korea Institute of Ceramic Engineering and Technology2School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education ABSTRACT Thermoelectric (TE) technology is becoming increasingly important in applications of solid-state cooling and renewable energy sources. $Bi_2Te_3$-based TE materials are widely used in small-scale cooling and temperature control applications; however, higher levels of TE performance are required for new applications such as large-scale cooling (e.g., domestic refrigerators or air conditioners) and for highly efficient power generation system. Recently, the TE performance of $Bi_2Te_3$-based materials has been remarkably enhanced by the introduction of nanostructuring technologies which can be used to prepare TE raw materials. Because it takes into account the theoretical and experimental characteristics, nanostructuring has been shown to be one of the most promising ways to realize the simultaneous control of the electronic and thermal transport properties. In this review, emphasis is placed on bulk-type nanostructured $Bi_2Te_3$-based TE materials. Nanostructuring technologies for enhanced TE performance are summarized, and a few important strategies are presented. Key words: Thermoelectric, $Bi_2Te_3$, Nanostructuring, Raw materials
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