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Ionic thermoelectric gating organic transistors
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-7016-6514
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-5154-0291
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-8845-6296
2017 (English)In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 8, article id 14214Article in journal (Refereed) Published
Abstract [en]

Temperature is one of the most important environmental stimuli to record and amplify. While traditional thermoelectric materials are attractive for temperature/heat flow sensing applications, their sensitivity is limited by their low Seebeck coefficient (similar to 100 mu V K-1). Here we take advantage of the large ionic thermoelectric Seebeck coefficient found in polymer electrolytes (similar to 10,000 mu V K-1) to introduce the concept of ionic thermoelectric gating a low-voltage organic transistor. The temperature sensing amplification of such ionic thermoelectric-gated devices is thousands of times superior to that of a single thermoelectric leg in traditional thermopiles. This suggests that ionic thermoelectric sensors offer a way to go beyond the limitations of traditional thermopiles and pyroelectric detectors. These findings pave the way for new infrared-gated electronic circuits with potential applications in photonics, thermography and electronic-skins.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2017. Vol. 8, article id 14214
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-134799DOI: 10.1038/ncomms14214ISI: 000393027300001PubMedID: 28139738OAI: oai:DiVA.org:liu-134799DiVA, id: diva2:1077040
Note

Funding Agencies|European Research Council (ERC) [307596]; Knut and Alice Wallenberg foundation; Swedish Foundation for Strategic Research; Swedish Energy Agency; Advanced Functional Materials Center at Linkoping University; Swedish Governmental Agency for Innovation Systems [2015-04859]

Available from: 2017-02-24 Created: 2017-02-24 Last updated: 2017-11-29

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