Karthikeyan, V. , Surjadi, J. U., Wong, J. C.K., Kannan, V., Lam, K.-H. , Chen, X., Lu, Y. and Roy, V. A.L. (2020) Wearable and flexible thin film thermoelectric module for multi-scale energy harvesting. Journal of Power Sources, 455, 227983. (doi: 10.1016/j.jpowsour.2020.227983)
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Abstract
Developing a thermoelectric generator(TEG) with shape conformable geometry for sustaining low-thermal impedance and large temperature gradient (ΔT) is fundamental for wearable and multi-scale energy harvesting applications. Here we demonstrate a flexible architectural design, with efficient thin film thermoelectric generator as a solution for this problem. This approach not only decreases the thermal impedance but also multiplies the temperature gradient, thereby increasing the power conversion efficiency (PCE) as comparable to bulk TEG. Intact thin films of Tin telluride (p-type) and Lead Telluride (n-type) are deposited on flexible substrate through physical vapor deposition and a thermoelectric module possessing a maximum output power density of 8.4 mW/cm2 is fabricated. We have demonstrated the performance of p-SnTe/n-PbTe based TEG as a flexible wearable power source for electronic gadgets, as a thermal touch sensor for real-time switching and temperature monitoring for exoskeleton applications.
| Item Type: | Articles |
|---|---|
| Additional Information: | We acknowledge grants from the Research Grants Council of Hong Kong Special Administrative Region Project no: T42-103/16N and Environmental & Conservation Fund (ECF) project number 44/2014. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Vellaisamy, Professor Roy and Karthikeyan, Dr Vaithinathan and Lam, Dr Koko |
| Creator Roles: | |
| Authors: | Karthikeyan, V., Surjadi, J. U., Wong, J. C.K., Kannan, V., Lam, K.-H., Chen, X., Lu, Y., and Roy, V. A.L. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Journal of Power Sources |
| Publisher: | Elsevier |
| ISSN: | 0378-7753 |
| ISSN (Online): | 1873-2755 |
| Published Online: | 09 March 2020 |
| Copyright Holders: | Copyright © 2020 Elsevier B.V. |
| First Published: | First published in Journal of Power Sources 455:227983 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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