BROWSE

Related Researcher

Author's Photo

Chae, Han Gi
Polymer nano-composites and Carbon Fiber Laboratory (P&C Lab)
Research Interests
  • Polymer Physics/ Processing, Carbon Nano-materials, Ultra high performance/ multifuctional nano-composites, Smart textile/ fiber

ITEM VIEW & DOWNLOAD

Composition-segmented BiSbTe thermoelectric generator fabricated by multimaterial 3D printing

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Composition-segmented BiSbTe thermoelectric generator fabricated by multimaterial 3D printing
Author
Yang, Seong EunKim, FredrickEjaz, FaizanLee, Gi SeungJu, HyejinChoo, SeungjunLee, JungsooKim, GyeonghunJung, Soo-hoAhn, SangjoonChae, Han GiKim, Kyung TaeKwon, BeomjinSon, Jae Sung
Issue Date
2021-03
Publisher
Elsevier BV
Citation
NANO ENERGY, v.81, pp.105638
Abstract
Segmented thermoelectric generators (TEGs) comprising multiple TE elements can operate over a large thermal gradient without inherent conversion efficiency (ZT) losses of materials. However, despite excellent theoretical efficiencies, the performance of actual segmented TEGs are critically affected by several challenges related to material incompatibility and limited design flexibility in conventional fabrication processes. Herein, we report the multi-material 3D printing of composition-segmented BiSbTe materials by the sequential deposition of all-inorganic viscoelastic TE inks containing BixSb2-xTe3 particles, tailored with Sb2Te42− chalcogenidometallate binders. The peak ZTs of the 3D-printed materials controllably shifted from room temperature to 250 °C by composition engineering of BixSb2-xTe3 particles. We fabricated the optimally designed TEG comprising the 3D-printed, composition-segmented tri-block Bi0.55Sb1.45Te3/Bi0.5Sb1.5Te3/Bi0.35Sb1.65Te3 TE leg, which extends the peak ZTs and satisfies full compatibility across the entire temperature range, realizing a record-high efficiency of 8.7% under the temperature difference of 236 °C. Our approach offers a promising strategy to optimize segmented TEGs.
URI
https://scholarworks.unist.ac.kr/handle/201301/48984
URL
https://www.sciencedirect.com/science/article/pii/S2211285520312118?dgcid=rss_sd_all
DOI
10.1016/j.nanoen.2020.105638
ISSN
2211-2855
Appears in Collections:
NUE_Journal Papers
MSE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU