Journal ArticleDOI
Ammonia sensors based on sensitive polyaniline films
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TLDR
In this paper, a new type of ammonia sensor with polyaniline (electroconducting polymer) as the sensitive element is proposed, which is characterized by high sensitivity, wide range of measured concentrations and high stability of electrical parameters.Abstract:
We propose a new type of ammonia sensor with polyaniline (electroconducting polymer) as the sensitive element. Such sensors are characterized by high sensitivity, wide range of measured concentrations (1–2000 ppm) and high stability of electrical parameters. The use of polyaniline ensures high chemical stability of the sensors in oxidizing ambients. A sensor design based on a silicon chip custom-packed into a linear plastic case is presented. The chip is provided with a system of heaters and thermometers to check the temperature regime of sensor operation. We have studied I – V curves, temperature, concentration and kinetic characteristics of the sensors, as well as their ageing. The possibility for thermoregeneration of the sensor parameters after long-term functioning in an ammonia ambient is emphasized.read more
Citations
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Journal ArticleDOI
Ammonia gas sensors: A comprehensive review.
TL;DR: The fundamental working principles of the ammonia detection techniques relying on electronics, electrochemistry, tunable diode laser spectroscopy, surface acoustic wave, and field effect transistors are briefly described first, in conjunction with various sensing materials.
Journal ArticleDOI
Fabrication of Water‐Dispersible Polyaniline‐Poly(4‐styrenesulfonate) Nanoparticles For Inkjet‐Printed Chemical‐Sensor Applications
TL;DR: In this article, the Brain-Korea 21 Program and the Hyperstructured Organic Materials Research Center are supported by the Korea Science and Engineering Foundation (KSEF). But the authors did not consider the impact of these two organizations on their work.
Journal ArticleDOI
Development of a polyaniline-based optical ammonia sensor
Zhe Jin,Yongxuan Su,Yixiang Duan +2 more
TL;DR: A polyaniline film was deposited on polyethylene surface by chemical oxidation of aniline monomer at room temperature, and the absorption spectra of the film was observed after it was exposed to ammonia gas.
Journal ArticleDOI
SPR based fibre optic ammonia gas sensor utilizing nanocomposite film of PMMA/reduced graphene oxide prepared by in situ polymerization
TL;DR: In this paper, surface plasmon resonance (SPR) based fiber optic gas sensors using nanocomposite film based on poly(methyl methacrylate) [PMMA], reduced graphene oxide (rGO) and PMMA/rGO nanocompositionites having varying amounts of rGO are presented.
Journal ArticleDOI
Flexible room temperature ammonia sensor based on polyaniline
TL;DR: In this article, a useful ammonia (NH3) gas sensor based on polyaniline (PANI) film as an active sensing layer was successfully deposited on a polyethylene terephthalate (PET) flexible substrate by a simple in-situ polymerization technique.
References
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Book
Electronic Properties of Doped Semiconductors
Boris I Shklovskii,A. L. Efros +1 more
TL;DR: In the last fifteen years, there has been a noticeable shift towards impure semiconductors -a shift which came about because it is precisely the impurities that are essential to a number of major semiconductor devices as discussed by the authors.
Journal ArticleDOI
Review: Polyaniline-A novel polymeric material.
TL;DR: The considerable progress which has been made in characterizing and understanding the properties of polyaniline derived from aniline is discussed and the progress towards technological applications is evaluated.
Journal ArticleDOI
Conducting polymer gas sensors
TL;DR: In this paper, solid-state semiconductor gas sensors based on organic sensor elements are reviewed and compared to metal-oxide devices in their sensitivity to toxic gases and their ability to operate at or near room temperature.
Journal ArticleDOI
Electroconducting conjugated polymers: New sensitive matrices to build up chemical or electrochemical sensors. A review☆
TL;DR: In this article, a lifetime of 60 days has been reported for ECP-based biosensors, where the enzyme (glucose oxidase) was included with an anionic electron relay.