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Ultrasensitive electrolyte-assisted temperature sensor
Linköping University, Sweden.
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara.ORCID-id: 0000-0002-2904-7238
RISE Research Institutes of Sweden, Digitala system, Smart hårdvara.ORCID-id: 0000-0002-4575-0193
Linköping University, Sweden.
Vise andre og tillknytning
2020 (engelsk)Inngår i: npj Flexible Electronics, ISSN 2397-4621, Vol. 4, nr 1, artikkel-id 23Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Heat sensors form an important class of devices that are used across multiple fields and sectors. For applications such as electronic skin and health monitoring, it is particularly advantageous if the output electronic signals are not only high, stable, and reproducible, but also self-generated to minimize power consumption. Here, we present an ultrasensitive heat sensing concept that fulfills these criteria while also being compatible with scalable low-cost manufacturing on flexible substrates. The concept resembles a traditional thermocouple, but with separated electrodes bridged by a gel-like electrolyte and with orders of magnitudes higher signals (around 11 mV K−1). The sensor pixels provide stable and reproducible signals upon heating, which, for example, could be used for heat mapping. Further modification to plasmonic nanohole metasurface electrodes made the sensors capable of also detecting light-induced heating. Finally, we present devices on flexible substrates and show that they can be used to detect human touch. © 2020, The Author(s).

sted, utgiver, år, opplag, sider
Nature Research , 2020. Vol. 4, nr 1, artikkel-id 23
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-48921DOI: 10.1038/s41528-020-00086-5Scopus ID: 2-s2.0-85091063196OAI: oai:DiVA.org:ri-48921DiVA, id: diva2:1476457
Merknad

Funding details: Dimbleby Cancer Care, DCC, 2016-05193; Funding details: Vetenskapsrådet, VR; Funding details: Wenner-Gren Stiftelserna; Funding details: Stiftelsen för Strategisk Forskning, SSF; Funding details: Linköpings Universitet, LiU, 2009 00971; Funding text 1: The authors gratefully acknowledge financial support from the Swedish Foundation for Strategic Research, the Swedish Research Council, the Wenner-Gren Foundations, Essity, the Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linköping University (Faculty Grant SFO-Mat-LiU No. 2009 00971) and the Vinnova Digital Cellulose Competence Center (DCC), Diary number 2016-05193. The work was also supported by Treesearch.se. Open access funding provided by Linköping University.

Tilgjengelig fra: 2020-10-14 Laget: 2020-10-14 Sist oppdatert: 2023-06-09bibliografisk kontrollert

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