Flexible Sensor Film Based on Rod-Shaped SWCNT-Polypyrrole Nanocomposite for Acetone Gas Detection.
Hyo-Kyung KangJun-Ho ByeonHyun-Jun HwangYoon-Hee JangJin-Yeol KimPublished in: Polymers (2023)
A nanocomposite rod-shaped structure with a single-walled carbon nanotube (SWCNT) embedded in polypyrrole (PPy) doped with nonafluorobutanesulfonic acid (C4F), SWCNT/C4F-PPy, was synthesized using emulsion polymerization. The hybrid ink was then directly coated on a polyimide film interdigitated with the Cu/Ni/Au electrodes via a screen-printing technique to create a flexible film sensor. The sensor film showed a response of 1.72% at 25 °C/atmospheric pressure when acetone gas of 5 ppm was injected, which corresponds to almost 95% compared to the Si wafer-based array interdigitated with the Au electrode. Additionally, C4F was used as a hydrophobic dopant of PPy to improve the stability of humidity and to produce a highly sensitive film-type gas sensor that provides stable detection even in humid conditions.
Keyphrases
- reduced graphene oxide
- room temperature
- gold nanoparticles
- carbon nanotubes
- high throughput
- label free
- carbon dioxide
- ionic liquid
- loop mediated isothermal amplification
- high resolution
- real time pcr
- particulate matter
- solid state
- highly efficient
- molecularly imprinted
- simultaneous determination
- solid phase extraction