Transparent thermocouples based on spray-coated nanocomposites

Andreas Albrecht, Marco Bobinger, Jacopo Bonaccini Calia, Aniello Falco, Florin Loghin, Almudena Rivadeneyra, Markus Becherer, Paolo Lugli

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

In this work, we present the use of nanomaterials such as silver nanowires (AgNWs), PEDOT:PSS and single-walled carbon nanotubes (CNTs) as nanocomposites for semi-transparent thermocouples (TCs). All materials are commercially available and are deposited to transparent conducting films by a scalable, facile and low-cost spraying technique. The thin-film TCs are characterized by a purposely developed setup and show Seebeck coefficients as high as 55 pV/°C at a transparency over 86 % at a wavelength of 550 nm for the individual materials, which exceeds the performance of conventional metal based TCs. Moreover, the change in voltage as a function of the temperature difference between the cold and the hot leg shows a linear behavior up to more than 70 °C temperature difference. These findings promote the presented material combinations to good candidates for temperature sensing or even energy harvesting for flexible and wearable electronics.

Original languageEnglish
Title of host publicationIEEE SENSORS 2017 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-3
Number of pages3
ISBN (Electronic)9781509010127
DOIs
StatePublished - 21 Dec 2017
Event16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom
Duration: 30 Oct 20171 Nov 2017

Publication series

NameProceedings of IEEE Sensors
Volume2017-December
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference16th IEEE SENSORS Conference, ICSENS 2017
Country/TerritoryUnited Kingdom
CityGlasgow
Period30/10/171/11/17

Keywords

  • energy harvesting
  • temperature sensor
  • thermocouples
  • thin-film
  • transparent

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