Screen-Printing Fabrication and Characterization of Stretchable Electronics

Jari Suikkola; Toni Björninen; Mahmoud Mosallaei; Timo Kankkunen; Pekka Iso-Ketola; Leena Ukkonen; Jukka Vanhala; Matti Mäntysalo

doi:10.1038/srep25784

Screen-Printing Fabrication and Characterization of Stretchable Electronics

Jari Suikkola
, Toni Björninen
, Mahmoud Mosallaei
, Timo Kankkunen
, Pekka Iso-Ketola
, Leena Ukkonen
, Jukka Vanhala
, Matti Mäntysalo^*

^*Corresponding author for this work

Not published at VTT

Tampere University of Technology (TUT)

Research output: Contribution to journal › Article › Scientific › peer-review

179 Citations (Scopus)

Abstract

This article focuses on the fabrication and characterization of stretchable interconnects for wearable electronics applications. Interconnects were screen-printed with a stretchable silver-polymer composite ink on 50-μm thick thermoplastic polyurethane. The initial sheet resistances of the manufactured interconnects were an average of 36.2 mω and half the manufactured samples withstood single strains of up to 74%. The strain proportionality of resistance is discussed, and a regression model is introduced. Cycling strain increased resistance. However, the resistances here were almost fully reversible, and this recovery was time-dependent. Normalized resistances to 10%, 15%, and 20% cyclic strains stabilized at 1.3, 1.4, and 1.7. We also tested the validity of our model for radio-frequency applications through characterization of a stretchable radio-frequency identification tag.

Original language	English
Article number	25784
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep25784
Publication status	Published - 13 May 2016
MoE publication type	A1 Journal article-refereed

Funding

We thank Technology Industries of Finland Centennial Foundation for funding the project in which this article was made. M. Mäntysalo is supported by Academy of Finland grant No. 288945. T.B. is supported by Academy of Finland grant No. 265768. L.U. is supported by Academy of Finland grant No. 258460, Finish Funding Agency for Technology and Innovation TEKES, and Jane and Aatos Erkko Foundation.

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Screen-Printing Fabrication and Characterization of Stretchable Electronics

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