Skip to main content

Switchable disposable passive RFID vapour sensors from inkjet printed electronic components integrated with PDMS as a stimulus responsive material

Belsey, K.E., Parry, A.V.S., Rumens, C.V., Ziai, M. A., Yeates, S.G., Batchelor, J.C., Holder, S.J. (2017) Switchable disposable passive RFID vapour sensors from inkjet printed electronic components integrated with PDMS as a stimulus responsive material. Journal of Materials Chemistry C, 5 (12). pp. 3167-3175. ISSN 2050-7526. E-ISSN 2050-7534. (doi:10.1039/c6tc05509e) (KAR id:61212)

PDF Publisher pdf
Language: English


Creative Commons Licence
This work is licensed under a Creative Commons Attribution 4.0 International License.
Download (2MB) Preview
[img]
Preview
Official URL
http://dx.doi.org/10.1039/c6tc05509e

Abstract

A route to cheap and disposable sensors for the chemical sensing market, with potential applications including monitoring of food spoilage, is reported herein. The sensor is the result of the direct integration of a stimuli-responsive material, poly(dimethylsiloxane) (PDMS), with an electronic component. The printing and sintering of colloidal silver ink solutions onto PDMS was optimized to allow the printing of conductive silver feed loops, which are the active sensing component in antennas for passive (battery-free) Radio Frequency Identification (RFID) tags. The response of these devices is related to the degree of swelling of the PDMS, which, in turn, has been shown to be correlated to the Hansen solubility parameters and the vapour pressures of the corresponding volatile organic compounds (VOCs). When exposed to solvent vapour the printed feed loop fractures, increasing resistance and ultimately breaking conductivity, leading to a change in the transmitted power and read range of the wireless device. Remarkably upon removal from the vapour, the fractured feed loops reassemble and become conductive again, making them switchable and “multi-use”. This work paves the way to a fully inkjet printed RFID substrate for vapour detection.

Item Type: Article
DOI/Identification number: 10.1039/c6tc05509e
Projects: [UNSPECIFIED] Sustainable Digital Fabrication of Low Energy Passive Wireless Sensors
Uncontrolled keywords: RFID, PDMS
Subjects: Q Science > QD Chemistry
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK7800 Electronics > TK7871.6 Antennas and waveguides
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: Simon Holder
Date Deposited: 05 Apr 2017 16:18 UTC
Last Modified: 31 Jan 2020 10:03 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/61212 (The current URI for this page, for reference purposes)
Batchelor, J.C.: https://orcid.org/0000-0002-5139-5765
Holder, S.J.: https://orcid.org/0000-0001-8977-9257
  • Depositors only (login required):

Downloads

Downloads per month over past year