This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Original Research
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A series of disposable gas-sensing paper-based film sensors were prepared rapidly by inkjet printing polyacrylic acid-coated silver nanoparticle (PAA/AgNP) ink onto the ordinary copy paper. The surface morphologies and chemical structures of the printed PAA/AgNP based sensing films with various thicknesses and spacing widths of interdigital electrodes were characterized. The electrical properties and the gas sensing performance of the film sensors were investigated and the results showed that the PAA/AgNP film sensors presented excellent selectivity, reproducibility and long-term stability to ammonia (NH3) gas at room temperature. The response of the PAA/AgNP film sensor to NH3 with the concentration of 25 ppm is 42.6% at 20℃ and 50% relative humidity (RH). The influences of thickness, spacing of interdigital electrodes and relative humidity on the sensing properties of the PAA/AgNP film sensors were also discussed and analyzed. Additionally, the PAA/AgNP film sensor presented perfect flexible stability and showed minor change in response value after 100 folding/extending cycles with the angle of 90°. In conclusion, the proposed high-performance paper based PAA/AgNP thin film sensor holds great promise for flexible, low-cost, portable, disposable and recyclable application in detecting NH3 at room temperature.
Keywords
paper-based film sensor, polyacrylic acid, silver nanoparticles, ammonia sensor, inkjet printing
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Original Research
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 04 Feb, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Materials Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
A series of disposable gas-sensing paper-based film sensors were prepared rapidly by inkjet printing polyacrylic acid-coated silver nanoparticle (PAA/AgNP) ink onto the ordinary copy paper. The surface morphologies and chemical structures of the printed PAA/AgNP based sensing films with various thicknesses and spacing widths of interdigital electrodes were characterized. The electrical properties and the gas sensing performance of the film sensors were investigated and the results showed that the PAA/AgNP film sensors presented excellent selectivity, reproducibility and long-term stability to ammonia (NH3) gas at room temperature. The response of the PAA/AgNP film sensor to NH3 with the concentration of 25 ppm is 42.6% at 20℃ and 50% relative humidity (RH). The influences of thickness, spacing of interdigital electrodes and relative humidity on the sensing properties of the PAA/AgNP film sensors were also discussed and analyzed. Additionally, the PAA/AgNP film sensor presented perfect flexible stability and showed minor change in response value after 100 folding/extending cycles with the angle of 90°. In conclusion, the proposed high-performance paper based PAA/AgNP thin film sensor holds great promise for flexible, low-cost, portable, disposable and recyclable application in detecting NH3 at room temperature.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
This is a list of supplementary files associated with this preprint. Click to download.
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