Cu2Se-based thermoelectric cellular architectures for efficient and durable power generation

Seungjun Choo, Faizan Ejaz, Hyejin Ju, Fredrick Kim, Jungsoo Lee, Seong Eun Yang, Gyeonghun Kim, Hangeul Kim, Seungki Jo, Seongheon Baek, Soyoung Cho, Keonkuk Kim, Ju-Young Kim, Sangjoon Ahn, Han Gi Chae (), Beomjin Kwon () and Jae Sung Son ()
Additional contact information
Seungjun Choo: Ulsan National Institute of Science and Technology (UNIST)
Faizan Ejaz: School for Engineering of Matter, Transport and Energy, Arizona State University
Hyejin Ju: Ulsan National Institute of Science and Technology (UNIST)
Fredrick Kim: Ulsan National Institute of Science and Technology (UNIST)
Jungsoo Lee: Ulsan National Institute of Science and Technology (UNIST)
Seong Eun Yang: Ulsan National Institute of Science and Technology (UNIST)
Gyeonghun Kim: Ulsan National Institute of Science and Technology
Hangeul Kim: Ulsan National Institute of Science and Technology (UNIST)
Seungki Jo: Ulsan National Institute of Science and Technology (UNIST)
Seongheon Baek: Ulsan National Institute of Science and Technology (UNIST)
Soyoung Cho: Ulsan National Institute of Science and Technology (UNIST)
Keonkuk Kim: Ulsan National Institute of Science and Technology (UNIST)
Ju-Young Kim: Ulsan National Institute of Science and Technology (UNIST)
Sangjoon Ahn: Ulsan National Institute of Science and Technology
Han Gi Chae: Ulsan National Institute of Science and Technology (UNIST)
Beomjin Kwon: School for Engineering of Matter, Transport and Energy, Arizona State University
Jae Sung Son: Ulsan National Institute of Science and Technology (UNIST)

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract Thermoelectric power generation offers a promising way to recover waste heat. The geometrical design of thermoelectric legs in modules is important to ensure sustainable power generation but cannot be easily achieved by traditional fabrication processes. Herein, we propose the design of cellular thermoelectric architectures for efficient and durable power generation, realized by the extrusion-based 3D printing process of Cu2Se thermoelectric materials. We design the optimum aspect ratio of a cuboid thermoelectric leg to maximize the power output and extend this design to the mechanically stiff cellular architectures of hollow hexagonal column- and honeycomb-based thermoelectric legs. Moreover, we develop organic binder-free Cu2Se-based 3D-printing inks with desirable viscoelasticity, tailored with an additive of inorganic Se82− polyanion, fabricating the designed topologies. The computational simulation and experimental measurement demonstrate the superior power output and mechanical stiffness of the proposed cellular thermoelectric architectures to other designs, unveiling the importance of topological designs of thermoelectric legs toward higher power and longer durability.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-23944-w Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23944-w

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-23944-w

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().