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Description:

The global warming trend has made the world realize the importance of cooling technologies. Peltier devices potentially save 10-times energy consumption compared to only air conditioners being used, because of their capability of directly cooling down human body. Yet, commercial Peltier devices are still heavy, solid, and small. To mass-produce lighter-weight larger-area thinner Peltier sheets via a roll-to-roll process, we have developed sticky thermoelectric materials, hierarchically designed at atomic scale, nano scale, and micro scale. However, thought thinner Peltier sheets enable to physically enhance the cooling heat flux capability further, they require higher current at the maximum operating point, which ruin their cooling performance due to Joule heating on electrodes. In this study, we researched the macro-scale patterning of sticky TE materials and electrodes and discovered a stripe pattern being 14~23% better than the traditional check pattern. The simpler pattern could benefit mass production.

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  This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1557/s43580-024-00937-7

Keyword: hierarchical, devices

Date published: 2024-09-12

Publisher: Springer Nature

Journal:

• MRS Advances (ISSN: 20598521)

Funding:

• New Energy and Industrial Technology Development Organization JPNP20004 (熱中症・猛暑対策に向けた全面冷却シートの実用化基礎研究)

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4904

First published URL: https://doi.org/10.1557/s43580-024-00937-7

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Updated at: 2025-10-21 16:16:49 +0900

Published on MDR: 2025-10-21 16:15:22 +0900