Fabrication of functional nanofibrous ammonia sensor

Nanofiberous sensor for ammonia gas is fabricated by electrospinning the composite of poly(diphenylamine), PDPA, with poly(methyl methacrylate), PMMA onto the patterned interdigit electrode. Interconnected fibrous morphology is evident for the electrospun membrane. Functional group and high active s...

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Main Authors: Gopalan, A.I., Kwang-Pill Lee, Manian, K.M.P., Santhosh, P., Kap-Duk Song, Duk-Dong Lee
Format: Conference Proceeding
Language:English
Subjects:
Biomembranes
Electrodes
Fabrication
Gas detectors
Linearity
membrane
Monitoring
Reproducibility of results
resistance
sensitivity
Spectroscopy
Surface morphology
Surface resistance
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creator Gopalan, A.I.
Kwang-Pill Lee
Manian, K.M.P.
Santhosh, P.
Kap-Duk Song
Duk-Dong Lee
description Nanofiberous sensor for ammonia gas is fabricated by electrospinning the composite of poly(diphenylamine), PDPA, with poly(methyl methacrylate), PMMA onto the patterned interdigit electrode. Interconnected fibrous morphology is evident for the electrospun membrane. Functional group and high active surface area of fibrous membrane help the device to have good reproducibility and to detect the lower concentration of ammonia. The sensing capability of device is studied by monitoring the changes in resistance with different concentration of ammonia. The resistance changes shows linearity in range of 10 ppm to 300. The mechanism behind the sensing characteristic is studied using UV-Visible spectroscopy.
doi_str_mv 10.1109/NANO.2006.247775
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Biomembranes
Electrodes
Fabrication
Gas detectors
Linearity
membrane
Monitoring
Reproducibility of results
resistance
sensitivity
Spectroscopy
Surface morphology
Surface resistance
title Fabrication of functional nanofibrous ammonia sensor
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