caa a22 4500 388020768 CHVBK 20180307124923.0 cr unu---uuuuu 161130e199803 xx s 000 0 eng 10.1557/JMR.1998.0067 doi S0884291400043041 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0067 Improvement in thermoelectric properties of (ZnO)5In2O3 through partial substitution of yttrium for indium [Elektronische Daten] We first measured the thermoelectric properties of layer-structured homologous compounds, (ZnO)mIn2O3 (m = integer), and reported that they would becomecandidate materials for high-temperature thermoelectric energy conversion.1-4 We further tried to improve their thermoelectric properties by partially substituting yttrium for indium in (ZnO)5In2O3. Though the ionic radius of Y3+ is larger than that of In3+, the a-axis (hexagonal system) elongated and c-axis shrank as Y was substituted for In. The thermoelectric properties were found to vary with a varying amount of Y substitution; 3% Y substitution gave rise to the largest thermoelectric figure of merit, i.e., 1.1 - 1.3 × 10-4 K-1 at 960-1100 K. The abnormal change in the lattice structure by Y substitution was responsible for the unusual behavior of the thermoelectric properties. Copyright © Materials Research Society 1998 Kazeoka Masaki Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan Hiramatsu Hidenori Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan Seo Won-Seon Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan Koumoto Kunihito Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan Journal of Materials Research Cambridge University Press 13/3(1998-03), 523-526 0884-2914 13:3<523 1998 13 JMR https://doi.org/10.1557/JMR.1998.0067 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0067 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kazeoka Masaki Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan NATIONALLICENCE 700 1- Hiramatsu Hidenori Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan NATIONALLICENCE 700 1- Seo Won-Seon Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan NATIONALLICENCE 700 1- Koumoto Kunihito Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/3(1998-03), 523-526 0884-2914 13:3<523 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge