Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler

Abstract Harvesting body heat using thermoelectricity provides a promising path to realizing self-powered, wearable electronics that can achieve continuous, long-term, uninterrupted health monitoring. This paper reports a flexible thermoelectric generator (TEG) that provides efficient conversion of...

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Autores principales:	Viswanath Padmanabhan Ramesh, Yasaman Sargolzaeiaval, Taylor Neumann, Veena Misra, Daryoosh Vashaee, Michael D. Dickey, Mehmet C. Ozturk
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/9a85fae2d33b417fa89cea2b37f7195a
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spelling	oai:doaj.org-article:9a85fae2d33b417fa89cea2b37f7195a2021-12-02T13:58:30ZFlexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler10.1038/s41528-021-00101-32397-4621https://doaj.org/article/9a85fae2d33b417fa89cea2b37f7195a2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41528-021-00101-3https://doaj.org/toc/2397-4621Abstract Harvesting body heat using thermoelectricity provides a promising path to realizing self-powered, wearable electronics that can achieve continuous, long-term, uninterrupted health monitoring. This paper reports a flexible thermoelectric generator (TEG) that provides efficient conversion of body heat to electrical energy. The device relies on a low thermal conductivity aerogel–silicone composite that secures and thermally isolates the individual semiconductor elements that are connected in series using stretchable eutectic gallium-indium (EGaIn) liquid metal interconnects. The composite consists of aerogel particulates mixed into polydimethylsiloxane (PDMS) providing as much as 50% reduction in the thermal conductivity of the silicone elastomer. Worn on the wrist, the flexible TEGs present output power density figures approaching 35 μWcm −2 at an air velocity of 1.2 ms −1, equivalent to walking speed. The results suggest that these flexible TEGs can serve as the main energy source for low-power wearable electronics.Viswanath Padmanabhan RameshYasaman SargolzaeiavalTaylor NeumannVeena MisraDaryoosh VashaeeMichael D. DickeyMehmet C. OzturkNature PortfolioarticleElectronicsTK7800-8360Materials of engineering and construction. Mechanics of materialsTA401-492ENnpj Flexible Electronics, Vol 5, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492 Viswanath Padmanabhan Ramesh Yasaman Sargolzaeiaval Taylor Neumann Veena Misra Daryoosh Vashaee Michael D. Dickey Mehmet C. Ozturk Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
description	Abstract Harvesting body heat using thermoelectricity provides a promising path to realizing self-powered, wearable electronics that can achieve continuous, long-term, uninterrupted health monitoring. This paper reports a flexible thermoelectric generator (TEG) that provides efficient conversion of body heat to electrical energy. The device relies on a low thermal conductivity aerogel–silicone composite that secures and thermally isolates the individual semiconductor elements that are connected in series using stretchable eutectic gallium-indium (EGaIn) liquid metal interconnects. The composite consists of aerogel particulates mixed into polydimethylsiloxane (PDMS) providing as much as 50% reduction in the thermal conductivity of the silicone elastomer. Worn on the wrist, the flexible TEGs present output power density figures approaching 35 μWcm −2 at an air velocity of 1.2 ms −1, equivalent to walking speed. The results suggest that these flexible TEGs can serve as the main energy source for low-power wearable electronics.
format	article
author	Viswanath Padmanabhan Ramesh Yasaman Sargolzaeiaval Taylor Neumann Veena Misra Daryoosh Vashaee Michael D. Dickey Mehmet C. Ozturk
author_facet	Viswanath Padmanabhan Ramesh Yasaman Sargolzaeiaval Taylor Neumann Veena Misra Daryoosh Vashaee Michael D. Dickey Mehmet C. Ozturk
author_sort	Viswanath Padmanabhan Ramesh
title	Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
title_short	Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
title_full	Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
title_fullStr	Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
title_full_unstemmed	Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
title_sort	flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9a85fae2d33b417fa89cea2b37f7195a
work_keys_str_mv	AT viswanathpadmanabhanramesh flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller AT yasamansargolzaeiaval flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller AT taylorneumann flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller AT veenamisra flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller AT daryooshvashaee flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller AT michaelddickey flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller AT mehmetcozturk flexiblethermoelectricgeneratorwithliquidmetalinterconnectsandlowthermalconductivitysiliconefiller
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Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler

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