High-performance shape-engineerable thermoelectric painting

Title
High-performance shape-engineerable thermoelectric painting
Authors
현도빈김진상권범진박성훈조승기Fedrick Kim반형우이지은구다희이세화황영훈이숙빈최경진조욱손재성
Issue Date
2016-11
Publisher
Nature Communications
Citation
VOL 7, NO 13403-13403-10
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.
URI
http://pubs.kist.re.kr/handle/201004/64919
ISSN
2041-1723
Appears in Collections:
KIST Publication > Article
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