dc.contributor.author | Zeng, C | |
dc.contributor.author | Chen, K | |
dc.contributor.author | Koz, C | |
dc.contributor.author | Stefanaki, E-C | |
dc.contributor.author | Galindez, ESS | |
dc.contributor.author | Zhang, H | |
dc.contributor.author | Fenwick, O | |
dc.contributor.author | Tuley, R | |
dc.contributor.author | Bilotti, E | |
dc.date.accessioned | 2024-02-09T16:19:03Z | |
dc.date.available | 2024-02-09T16:19:03Z | |
dc.date.issued | 2023-10-01 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/94551 | |
dc.description.abstract | Thermoelectric (TE) devices can convert heat to electricity directly, which offers a unique opportunity to realize waste heat recovery. However, conventional TE devices inevitably use heat sinks, which are bulky, rigid and heavy, limiting practical applications. Herein, we propose a fully integrated film-based TE device with intrinsically built-in fins as heat sink in a hexagonal honeycomb device structure, that simultaneously achieves high TE performance and conformability, as confirmed by experiments and modelling. A flexible Kapton substrate with copper electrodes, integrating either carbon nanotube (CNT) veils or bismuth telluride (Bi2Te3) TE ‘legs’, both of n- and p-type, achieved a remarkable specific power of 185.4 nW K−2 for a Bi2Te3-based device and 53.1 nW K−2 for a CNT-based device, thanks to the heat dissipation effect granted by the built-in fins. Besides, the addition of oriented polymer films interconnects, contracting when above their glass transition temperature, allowed a single substrate two-dimensional (2D) TE device to self-fold into a three-dimensional (3D) hexagonal honeycomb structure, with built-in fins, contactlessly and autonomously. The demonstrated shape-programmed kirigami-inspired scalable TE device paves the way for realising self-powered applications comprising hundreds of TE legs with both inorganic (e.g., Bi2Te3) and organic (e.g. CNT veils) TE materials and integrated heat sinks. | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | This item is distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | |
dc.title | Kirigami-Inspired Organic and Inorganic Film-Based Flexible Thermoelectric Devices with Built-In Heat Sink | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2023, The Author. Published by Elsevier | |
dc.identifier.doi | 10.2139/ssrn.4600813 | |
pubs.notes | Not known | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
qmul.funder | Organic thermoelectrics in multiple structural and transport regimes::Royal Society | en_US |