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Lee, Sukbin
Multidimensional Structural Materials Lab.
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High-performance shape-engineerable thermoelectric painting

Author(s)
Park, Sung HoonJo, SeungkiKwon, BeomjinKim, FrederickBan, Hyeong WooLee, Ji EunGu, Da HwiLee, Se HwaHwang, YounghunKim, Jin-SangHyun, Dow-BinLee, SukbinChoi, Kyoung JinJo, WookSon, Jae Sung
Issued Date
2016-11
DOI
10.1038/ncomms13403
URI
https://scholarworks.unist.ac.kr/handle/201301/20733
Fulltext
http://www.nature.com/articles/ncomms13403
Citation
NATURE COMMUNICATIONS, v.7, pp.13403
Abstract
Output power of thermoelectric generators depends on device engineering minimizing heat loss as well as inherent material properties. However, the device engineering has been largely neglected due to the limited flat or angular shape of devices. Considering that the surface of most heat sources where these planar devices are attached is curved, a considerable amount of heat loss is inevitable. To address this issue, here, we present the shape-engineerable thermoelectric painting, geometrically compatible to surfaces of any shape. We prepared Bi2Te3-based inorganic paints using the molecular Sb2Te3 chalcogenidometalate as a sintering aid for thermoelectric particles, with ZT values of 0.67 for n-type and 1.21 for p-type painted materials that compete the bulk values. Devices directly brush-painted onto curved surfaces produced the high output power of 4.0 mW cm(-2). This approach paves the way to designing materials and devices that can be easily transferred to other applications.
Publisher
NATURE PUBLISHING GROUP
ISSN
2041-1723
Keyword
POWER GENERATORCOLLOIDAL NANOCRYSTALSWASTE HEATDISSOLUTIONFABRICATIONTELLURIUMMODULESDESIGNBI2TE3PHASE

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