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Issue 14, 2019
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A highly sensitive wireless nitrogen dioxide gas sensor based on an organic conductive nanocomposite paste

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Abstract

Hazardous gas sensor technology in a wireless system is needed urgently for diverse applications ranging from the workplace to the battlefield. However, there are several limitations of the wireless gas sensing system such as high cost and poor sensitivity and selectivity for applications in real life. Here, a radio frequency identification (RFID)-based wireless sensor system is fabricated using an organic conductive nanocomposite paste composed of multidimensional Fe2O3 hollow nanoparticles (M_FeHNPs) and polystyrene sulfonic acid-doped polyaniline (PANI:PSS). The conductive paste acts as an RFID tag antenna pattern and sensing transducer in the RFID sensor tag. This RFID-based wireless sensor shows ultrahigh sensitivity (up to 0.5 ppm) to NO2 with very low processing cost. In addition, the organic conducting paste based RFID sensor system displays a long-distance operating range and high flexibility, which may offer practical use in a wearable device for wireless sensing.

Graphical abstract: A highly sensitive wireless nitrogen dioxide gas sensor based on an organic conductive nanocomposite paste

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Supplementary files

Article information


Submitted
07 Jan 2019
Accepted
06 Mar 2019
First published
07 Mar 2019

J. Mater. Chem. A, 2019,7, 8451-8459
Article type
Paper

A highly sensitive wireless nitrogen dioxide gas sensor based on an organic conductive nanocomposite paste

S. G. Kim, J. Jun, J. S. Lee and J. Jang, J. Mater. Chem. A, 2019, 7, 8451
DOI: 10.1039/C9TA00198K

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