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Open AccessFeature PaperArticle

An Origami Heat Radiation Fin for Use in a Stretchable Thermoelectric Generator

Department of Applied Mechanics, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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Micromachines 2020, 11(3), 263; https://doi.org/10.3390/mi11030263
Received: 15 January 2020 / Revised: 20 February 2020 / Accepted: 2 March 2020 / Published: 4 March 2020
(This article belongs to the Special Issue Power MEMS 2019)
Recently, some studies have addressed the use of a folded substrate to realize stretchable electronic devices including stretchable thermoelectric generators (TEGs). However, the utilization of the folded substrate as a heat radiation fin has not been achieved. Herein, we have proposed the construction of a TEG with an origami-like folded structure substrate called an “origami-fin” that can achieve a high heat radiation performance and is also highly stretchable. The origami-fin increases the stretchability of the TEG by bending a non-stretchable material into a folded shape, and it also works as a heat radiator because of its large surface area compared to that of a flat structure. We evaluated the heat radiation performance of the origami-fin and the stability of the performance when it was stretched. The results demonstrate that the origami-fin works as a heat radiator and enhances the output of the TEG, while also exhibiting a high stretchability with only a slight output reduction. View Full-Text
Keywords: energy harvesting; thermoelectric generator; origami; stretchable device; flexible device energy harvesting; thermoelectric generator; origami; stretchable device; flexible device
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Akuto, M.; Iwase, E. An Origami Heat Radiation Fin for Use in a Stretchable Thermoelectric Generator. Micromachines 2020, 11, 263.

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