Structure-Driven, Flexible, Multilayered, Paper-Based Pressure Sensor for Human-Machine Interfacing

Sakhuja, N and Kumar, R and Katare, P and Bhat, N (2022) Structure-Driven, Flexible, Multilayered, Paper-Based Pressure Sensor for Human-Machine Interfacing. In: ACS Sustainable Chemistry and Engineering, 10 (30). pp. 9697-9706.

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Abstract

Flexible pressure sensors have gained considerable attention for their potential applications in wearable electronics and human-machine interfacing. However, two major bottlenecks in their widespread usage (i) achieving high sensitivity over a wide working pressure range and (ii) constituent material platform for manufacturability and environmental safety still limits its utility. Herein, we suggest a low-cost hierarchical construction strategy, which enhances the sensitivity of a paper-based piezoresistive pressure sensor over a wide working range. This strategy uses a special multilayered cellulose paper structure composed of alternate layers of plain and corrugated paper sheets, coated with 2D tin-monosulfide (SnS). This design of the paper pressure sensor allows it to achieve high sensitivity up to 14.8 kPa-1 and a broad working range of 0-120 kPa with good durability and repeatability. Further, to confirm practical applicability, we utilized an array of these multilayered flexible pressure sensors for monitoring human activity and developing a biodegradable and foldable keypad. The proposed paper-based green electronic platform can potentially be used in a variety of applications including healthcare and human-machine interfacing.

Item Type:	Journal Article
Publication:	ACS Sustainable Chemistry and Engineering
Publisher:	American Chemical Society
Additional Information:	The copyright for this article belongs to the American Chemical Society.
Keywords:	Flexible electronics; Layered semiconductors; Motion analysis; Tin compounds; Wearable sensors, Constituent materials; Environmental safety; Flexible pressure sensors; High sensitivity; Human motion detection; Human-machine; Manufacturability; Multi-layered; Pressure ranges; Working pressures, Pressure sensors
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	30 Aug 2022 12:00
Last Modified:	30 Aug 2022 12:00
URI:	https://eprints.iisc.ac.in/id/eprint/76284

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