Solid-State Self-Assembly of Nanostructured Oxide as a Candidate High-Performance Thermoelectric Material |
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| Authors: | Atsuko Kosuga Ken Kurosaki Kunio Yubuta Anek Charoenphakdee Shinsuke Yamanaka Ryoji Funahashi |
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| Affiliation: | (1) National Institute of Advanced Industrial Science and Technology, Ikeda, Osaka 563-8577, Japan;(2) Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan;(3) Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan |
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| Abstract: | We have focused on the recently reported nanostructured bulk ZnMn2−x Ga x O4 to evaluate whether this type of nanostructured oxide can effectively reduce thermal conductivity. Firstly, powdered samples of ZnMn2−x Ga x O4 (x = 0 to 2) were prepared and the effect of heat treatment on the obtained phases was examined. Secondly, we have picked out the composition of ZnMnGaO4, in which two distinct types of rectangular nanorods with different compositions spontaneously interlace to form a cross-sectional checkerboard pattern. To confirm the effect of nanostructure on thermal transport properties, the room-temperature thermal conductivity of this nanostructured oxide was evaluated. |
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| Keywords: | Nanostructured oxide thermal conductivity |
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