Abstract
In this paper, a novel flexible tunable metasurface absorber is proposed for large-scale remote ethanol sensor applications. The proposed metasurface absorber consists of periodic split-ring-cross resonators (SRCRs) and microfluidic channels. The SRCR patterns are inkjet-printed on paper using silver nanoparticle inks. The microfluidic channels are laser-etched on polydimethylsiloxane (PDMS) material. The proposed absorber can detect changes in the effective permittivity for different liquids. Therefore, the absorber can be used for a remote chemical sensor by detecting changes in the resonant frequencies. The performance of the proposed absorber is demonstrated with full-wave simulation and measurement results. The experimental results show the resonant frequency increases from 8.9 GHz to 10.04 GHz when the concentration of ethanol is changed from 0% to 100%. In addition, the proposed absorber shows linear frequency shift from 20% to 80% of the different concentrations of ethanol.
Highlights
Various chemicals used in modern industry and research are being managed by material safety data sheets (MSDSs) and the Globally Harmonized System (GHS) of classification and labelling of chemicals
The metasurface can be used as an electromagnetic (EM) wave absorber by using EM resonators such as split ring resonators (SRRs) [2]
We introduce a microfluidic metasurface absorber for flexible large-scale proposed using the microwave metamaterial resonator in the guided wave its sensitivity is not demonstrated materials [12].metasurface
Summary
Various chemicals used in modern industry and research are being managed by material safety data sheets (MSDSs) and the Globally Harmonized System (GHS) of classification and labelling of chemicals. In spite of these standards, sometimes unidentified chemicals are generated by complex experimental processes. The resonance frequency of the metasurface is highly sensitive to the inductive and capacitive components of the resonator [8,9]. This feature suggests the possibility of using a metasurface in sensor applications. The sensor can sense the strain by measuring resonance frequency shifts
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
