Roll-To-Roll Screen-Printed Silver Conductors on a Polydimethyl Siloxane Substrate for Stretchable Electronics

Olli Heikki Huttunen (Corresponding Author), Tuomas Happonen, Johanna Hiitola-Keinänen, Pentti Korhonen, Jyrki Ollila, Jussi Hiltunen (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    11 Citations (Scopus)

    Abstract

    Stretchable electronics has attracted much interest recently because of its potential applications in the area of wearable electronics and healthcare. Highly elastic polydimethyl siloxane (PDMS) has been for decades a widely used material in prototyping purposes. It enables the realization of a variety of mechanical and optical functions besides being a substrate for other processes or applications. As a substrate, PDMS enables high stretchability and easy integration of other parts made of PDMS. In this work, we demonstrated a high-volume production of stretchable electrical interconnections on PDMS substrates. We used roll-to-roll (R2R) rotary screen printing that has been conventionally applied in high-throughput fabrication of electronics on flexible, but not stretchable, substrates. We demonstrated silver interconnects whose conductivity remains sufficient for signal transmission, for example, in sensor structures under repeated 20% strain over 100 cycles. We also demonstrated R2R compatible PDMS encapsulation of electrical interconnections that increased the strain repetition durability by a factor of 2.

    Original languageEnglish
    Pages (from-to)19909-19916
    Number of pages8
    JournalIndustrial and Engineering Chemistry Research
    Volume58
    Issue number43
    DOIs
    Publication statusPublished - 30 Oct 2019
    MoE publication typeA1 Journal article-refereed

    Keywords

    • OtaNano

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