Inkjet-Printed Graphene/PEDOT:PSS Temperature Sensors on a Skin-Conformable Polyurethane Substrate

Tiina Vuorinen, Juha Niittynen, Timo Kankkunen, Thomas Kraft, Matti Mäntysalo

    Research output: Contribution to journalArticleScientificpeer-review

    114 Citations (Scopus)
    153 Downloads (Pure)

    Abstract

    Epidermal electronic systems (EESs) are skin-like electronic systems, which can be used to measure several physiological parameters from the skin. This paper presents materials and a simple, straightforward fabrication process for skin-conformable inkjet-printed temperature sensors. Epidermal temperature sensors are already presented in some studies, but they are mainly fabricated using traditional photolithography processes. These traditional fabrication routes have several processing steps and they create a substantial amount of material waste. Hence utilizing printing processes, the EES may become attractive for disposable systems by decreasing the manufacturing costs and reducing the wasted materials. In this study, the sensors are fabricated with inkjet-printed graphene/PEDOT:PSS ink and the printing is done on top of a skin-conformable polyurethane plaster (adhesive bandage). Sensor characterization was conducted both in inert and ambient atmosphere and the graphene/PEDOT:PSS temperature sensors (thermistors) were able reach higher than 0.06% per degree Celsius sensitivity in an optimal environment exhibiting negative temperature dependence.
    Original languageEnglish
    Number of pages8
    JournalScientific Reports
    Volume6
    DOIs
    Publication statusPublished - 18 Oct 2016
    Publication typeA1 Journal article-refereed

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    • Publication forum level 2

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