Journal ArticleDOI
Ammonia sensors based on sensitive polyaniline films
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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
Bridging the Gap: Polymer Nanowire Devices
Journal ArticleDOI
Optical ammonia gas sensor based on nanostructure dye-doped polypyrrole
Farnaz Tavoli,Naader Alizadeh +1 more
TL;DR: In this paper, a dye-doped nanostructure polypyrrole (PPy) film, as sensitive layer, has been synthesized by chemical processing, which was used for selective optical ammonia gas sensor.
Journal ArticleDOI
Direct measurement of ammonia in simulated human breath using an inkjet-printed polyaniline nanoparticle sensor
TL;DR: A sensor fabricated from the inkjet-printed deposition of polyaniline nanoparticles onto a screen-printed silver interdigitated electrode was developed for the detection of ammonia in simulated human breath samples and quantification was improved after the cumulative measurement of multiple breaths.
Journal ArticleDOI
Development of an optical ammonia sensor based on polyaniline/epoxy resin (SU-8) composite.
TL;DR: Experimental results show that the PANI/SU-8 optical sensor has simultaneously a rapid response to ammonia gas and regenerates easily, that is advantageous compared to pure PANI films.
Journal ArticleDOI
Design and sensing properties of an integrated optical gas sensor based on a multilayer structure.
TL;DR: Experimental results demonstrate that the MIOS structure presents a potential innovation to elaborate integrated optical sensor based on non transparent (opaque) sensitive material.
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.