Electrodeposited thin-film micro-thermoelectric coolers with extreme heat flux handling and microsecond time response

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dc.contributor.author Corbett, Simon
dc.contributor.author Gautam, D.
dc.contributor.author Lal, Swatchith
dc.contributor.author Yu, Kenny
dc.contributor.author Balla, Naveen
dc.contributor.author Cunningham, Graeme
dc.contributor.author Razeeb, Kafil M.
dc.contributor.author Enright, Ryan
dc.contributor.author McCloskey, David
dc.date.accessioned 2021-02-18T10:51:30Z
dc.date.available 2021-02-18T10:51:30Z
dc.date.issued 2021-01-04
dc.identifier.citation Corbett, S., Gautam, D., Lal, S., Yu, K., Balla, N., Cunningham, G., Razeeb, K. M., Enright, R. and McCloskey, D. (2021) 'Electrodeposited thin-film micro-thermoelectric coolers with extreme heat flux handling and microsecond time response', ACS Applied Materials and Interfaces, 13(1), pp. 1773-1782. doi: 10.1021/acsami.0c16614 en
dc.identifier.volume 13 en
dc.identifier.issued 1 en
dc.identifier.startpage 1773 en
dc.identifier.endpage 1782 en
dc.identifier.issn 1944-8244
dc.identifier.uri http://hdl.handle.net/10468/11071
dc.identifier.doi 10.1021/acsami.0c16614 en
dc.description.abstract Thin-film thermoelectric coolers are emerging as a viable option for the on-chip temperature management of electronic and photonic integrated circuits. In this work, we demonstrate the record heat flux handling capability of electrodeposited Bi2Te3 films of 720(±60) W cm–2 at room temperature, achieved by careful control of the contact interfaces to reduce contact resistance. The characteristic parameters of a single leg thin-film devices were measured in situ, giving a Seebeck coefficient of S = −121(±6) μV K–1, thermal conductivity of κ = 0.85(±0.08) W m–1 K–1, electrical conductivity of σ = 5.2(±0.32) × 104 S m–1, and electrical contact resistivity of ∼10–11 Ω m2. These thermoelectric parameters lead to a material ZT = 0.26(±0.04), which, for our device structure, allowed a net cooling of ΔTmax = 4.4(±0.12) K. A response time of τ = 20 μs was measured experimentally. This work shows that with the correct treatment of contact interfaces, electrodeposited thin-film thermoelectrics can compete with more complicated and expensive technologies such as metal organic chemical vapor deposition (MOCVD) multilayers. en
dc.description.sponsorship Irish Research Council (Grant EBPPG/2018/265); Science Foundation Ireland (SFI-16/IFB/4587) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Chemical Society en
dc.rights © 2021, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, after technical editing by the publisher. To access the final edited and published work see: https://doi.org/10.1021/acsami.0c16614 en
dc.subject Thermoelectric cooler en
dc.subject Electrodeposition en
dc.subject Contact resistance CCD-thermoreflectance en
dc.subject Heat flux en
dc.title Electrodeposited thin-film micro-thermoelectric coolers with extreme heat flux handling and microsecond time response en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Kafil Razeeb Mahmood, Tyndall Microsystems, University College Cork, Cork, Ireland. +353-21-490-3000 Email: kafil.mahmood@tyndall.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2022-01-04
dc.date.updated 2021-02-18T09:49:08Z
dc.description.version Accepted Version en
dc.internal.rssid 555632382
dc.internal.pmid 33393783
dc.contributor.funder Horizon 2020 en
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Irish Research Council en
dc.description.status Peer reviewed en
dc.identifier.journaltitle ACS Applied Materials and Interfaces en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress kafil.mahmood@tyndall.ie en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020::RIA/644453/EU/Thermally Integrated Smart Photonics Systems/TIPS en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020::RIA/825114/EU/Smart Autonomous Multi Modal Sensors for Vital Signs Monitoring/SmartVista en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/ en
dc.identifier.eissn 1944-8252

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