Seo, Jang Woo Cha, Jaesung Won, Sung Ok Park, Kyeongsoon 2024-01-20T01:01:14Z 2024-01-20T01:01:14Z 2021-09-05 2017-08 0002-7820 https://pubs.kist.re.kr/handle/201004/122447 Ca0.8Y0.2-xDyxMnO3-delta (0 <= x <= 0.2) samples were fabricated by the solid-state reaction method, and their thermoelectric properties were studied from 500 degrees C to 800 degrees C. Upon the substitution of Dy3+ for Y3+ in the Ca0.8Y0.2-xDyxMnO3-delta, the electrical and thermal conductivities gradually decreased with increasing Dy3+ concentration, whereas the absolute value of the Seebeck coefficient significantly increased. The Ca0.8Y0.2-xDyxMnO3-delta showed the largest value of dimensionless figure of merit (0.180) at 800 degrees C as a result of the combination of the largest absolute value of the Seebeck coefficient and the lowest thermal conductivity. We believe that the Ca0.8Y0.2-xDyxMnO3-delta is a promising thermoelectric material at high temperatures. English WILEY METAL-INSULATOR-TRANSITION TEMPERATURE PERFORMANCE SYSTEM Electrical transport and thermoelectric properties of Ca0.8Y0.2-xDyxMnO3-delta (0 <= x <= 0.2) Article 10.1111/jace.14898 1 JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.100, no.8, pp.3608 - 3617 JOURNAL OF THE AMERICAN CERAMIC SOCIETY 100 8 3608 3617 scie scopus 000408731300031 2-s2.0-85018338844 Materials Science, Ceramics Materials Science Article METAL-INSULATOR-TRANSITION TEMPERATURE PERFORMANCE SYSTEM electrical conductivity oxides powders sinter/sintering thermoelectric properties