Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Paper-supported WS2 Strain Gauges

Version 1 : Received: 30 June 2021 / Approved: 1 July 2021 / Online: 1 July 2021 (11:27:41 CEST)

How to cite: Zhang, W.; Frisenda, R.; Zhao, Q.; Carrascoso, F.; Al-Enizi, A.E.; Nafady, A.; Castellanos-Gomez, A. Paper-supported WS2 Strain Gauges. Preprints 2021, 2021070021 (doi: 10.20944/preprints202107.0021.v1). Zhang, W.; Frisenda, R.; Zhao, Q.; Carrascoso, F.; Al-Enizi, A.E.; Nafady, A.; Castellanos-Gomez, A. Paper-supported WS2 Strain Gauges. Preprints 2021, 2021070021 (doi: 10.20944/preprints202107.0021.v1).

Abstract

Environmentally friendly and low-cost sensors are needed for the next generation disposable electronics applications. Given its low-cost, availability and biodegradability, paper-based devices are a very promising. Here we demonstrate the fabrication of a tungsten disulphide (WS2) strain sensor on standard copy paper. The WS2 is deposited through direct abrasion of WS2 powder against the paper surface making the fabrication of the device low-tech and cost effective. The fabricated strain gauge devices present gauge factors up to ~70 for strains in the ± 0.5 % range. These values are ~ 9 times larger than that obtained on devices with the same geometry but using a graphite film instead a WS2 as a sensitive material. We demonstrate the potential of these WS2-on-paper strain gauges by integrating them directly on a paper cantilever to sense mass and forces. We show how this very simple device can detect sub-milligram masses. Moreover, we also demonstrate the capability of transducing motion in mechanical resonators by gluing a WS2-on-paper strain gauge on their surface.

Subject Areas

paper electronics; strain gauge; sensor; low-cost electronics; van der Waals materials; tungsten disulfide WS2

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