임주혁 정규호 유현우 김광천 김진상 2024-01-20T19:03:43Z 2024-01-20T19:03:43Z 2021-09-06 2010-06 1226-7945 https://pubs.kist.re.kr/handle/201004/131371 In order to design nano structured materials with enhanced thermoelectric properties, the alloys in the pseudo-binary Bi2Te3-PbTe system are investigated for their micro structure properties. For this synthesis, the liquid alloys are cooled by the water quenching method. Micro structure images are obtained by using an electron probe micro analyzer(EPMA). Dendritic and lamellar structures are clearly observed with the variation in the composition ratio between Bi2Te3 and PbTe. The increase in the Bi2Te3 composition ratio causes to change of the structure from dendritic to lamellar. The Seebeck coefficient of sample 5, in which the mixture rate of Bi2Te3 is 83%, is measured as the highest value. In contrast, the others decrease with the increase of the Bi2Te3 composition ratio. Meanwhile, p-type characteristics are observed in sample 6, at 91%-Bi2Te3 mixture rate. The power factors of the all samples are calculated with the Seebeck coefficient and resistivity. Korean 한국전기전자재료학회 급속 응고 된 Bi2Te3-PbTe계 열전소재의 미세구조와 열전 특성 Microstructures and Thermal Properties of Water Quenched Thermoelectric Material in Bi2Te3-PbTe System Article 2 전기전자재료학회논문지, v.23, no.6, pp.502 - 507 전기전자재료학회논문지 23 6 502 507 kci ART001449348 Thermoelectric Thermal property Self assembled structure PbTe Bi2Te3 PbBi2Te4 Thermoelectric Thermal property Self assembled structure PbTe Bi2Te3 PbBi2Te4