Flexible All-Inorganic Thermoelectric Yarns

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 47 vom: 01. Nov., Seite e2408320
1. Verfasser: Jang, Hanhwi (VerfasserIn)
Weitere Verfasser: Ahn, Junseong, Jeong, Yongrok, Ha, Ji-Hwan, Jeong, Jun-Ho, Oh, Min-Wook, Park, Inkyu, Jung, Yeon Sik
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article all‐inorganic flexible mechanical properties thermoelectrics yarns
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520 |a Achieving both formability and functionality in thermoelectric materials remains a significant challenge due to their inherent brittleness. Previous approaches, such as polymer infiltration, often compromise thermoelectric efficiency, underscoring the need for flexible, all-inorganic alternatives. This study demonstrates that the extreme brittleness of thermoelectric bismuth telluride (Bi2Te3) bulk compounds can be overcome by harnessing the nanoscale flexibility of Bi2Te3 nanoribbons and twisting them into a yarn structure. The resulting Bi2Te3 yarn, with a Seebeck coefficient of -126.6 µV K-1, exhibits remarkable deformability, enduring extreme bending curvatures (down to 0.5 mm-1) and tensile strains of ≈5% through over 1000 cycles without significant resistance change. This breakthrough allows the yarn to be seamlessly integrated into various applications-wound around metallic pipes, embedded within life jackets, or woven into garments-demonstrating unprecedented adaptability and durability. Moreover, a simple 4-pair thermoelectric generator comprising Bi2Te3 yarns and metallic wires generates a maximum output voltage of 67.4 mV, substantiating the effectiveness of thermoelectric yarns in waste heat harvesting. These advances not only challenge the traditional limitations posed by the brittleness of thermoelectric materials but also open new avenues for their application in wearable and structural electronics 
650 4 |a Journal Article 
650 4 |a all‐inorganic 
650 4 |a flexible 
650 4 |a mechanical properties 
650 4 |a thermoelectrics 
650 4 |a yarns 
700 1 |a Ahn, Junseong  |e verfasserin  |4 aut 
700 1 |a Jeong, Yongrok  |e verfasserin  |4 aut 
700 1 |a Ha, Ji-Hwan  |e verfasserin  |4 aut 
700 1 |a Jeong, Jun-Ho  |e verfasserin  |4 aut 
700 1 |a Oh, Min-Wook  |e verfasserin  |4 aut 
700 1 |a Park, Inkyu  |e verfasserin  |4 aut 
700 1 |a Jung, Yeon Sik  |e verfasserin  |4 aut 
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773 1 8 |g volume:36  |g year:2024  |g number:47  |g day:01  |g month:11  |g pages:e2408320 
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