Fabrication and Characterizations of a Novel Etched-tapered Single Mode Optical Fiber Ammonia Sensors Integrating PANI/GNF Nanocomposite

Mohammed, Husam Abduldaem; Rashid, Suraya Abdul; Bakar, M. H. Abu; Anas, Siti Barirah Ahmad; Mahdi, Mohd Adzir; Yaacob, Mohd Hanif

doi:10.1016/j.snb.2019.01.115

Cited by 42 publications

(14 citation statements)

References 25 publications

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“…The PPY-PB nanocomposite-based fiber-optic sensor exhibited an enhanced sensitivity for ethanol than pure PPY nanoparticles, and spectral intensity increases linearly with increasing the concentrations of gas. Very recently, Mohammed et al fabricated an etched-tapered single-mode fiber (SMF) coated with a high surface area PANI/graphite nanofiber (GNF) nanocomposite as optical sensor for NH 3 gas at room temperature in the visible wavelength range [175]. The sensor exhibited a good response time, sensitivity, and reproducibility for NH 3 , compared with pure PANI-coated SMF.…”

Section: Fiber-optic Devicesmentioning

confidence: 99%

Gas Sensors Based on Conducting Polymers

Torad¹,

Ayad²

2020

Gas Sensors

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Since the discovery of conducting polymers (CPs), their unique properties and tailor-made structures on-demand have shown in the last decade a renaissance and have been widely used in fields of chemistry and materials science. The chemical and thermal stability of CPs under ambient conditions greatly enhances their utilizations as active sensitive layers deposited either by in situ chemical or by electrochemical methodologies over electrodes and electrode arrays for fabricating gas sensor devices, to respond and/or detect particular toxic gases, volatile organic compounds (VOCs), and ions trapping at ambient temperature for environmental remediation and industrial quality control of production. Due to the extent of the literature on CPs, this chapter, after a concise introduction about the development of methods and techniques in fabricating CP nanomaterials, is focused exclusively on the recent advancements in gas sensor devices employing CPs and their nanocomposites. The key issues on nanostructured CPs in the development of state-of-the-art miniaturized sensor devices are carefully discussed. A perspective on next-generation sensor technology from a material point of view is demonstrated, as well. This chapter is expected to be comprehensive and useful to the chemical community interested in CPs-based gas sensor applications.

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Section: Fiber-optic Devicesmentioning

confidence: 99%

Gas Sensors Based on Conducting Polymers

Torad¹,

Ayad²

2020

Gas Sensors

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“…In addition, performing the interfacial polymerization at less than −30 °C promotes para-coupling of aniline monomers, which resulted in PANI nanostructures with fewer structural defects [7,8]. The secondarily doped of the PANI prepared by the interfacial polymerization has shown the maximum conductivity close to 10 3 S/cm, which is approximately six times higher than the conventional PANI:CSA synthesized by conventional single-phase polymerization, due to the enhanced Recently, there have been various approaches for enhancing the electrical conductivity and electrochemical properties of the PANI:CSA for use in various applications, such as SCs [12][13][14][15][17][18][19], TE materials [20,54,55,58,59,61,68,69], supercapacitors [16,60,62,67], chemical sensors [56,65,70], antennas [63,66], EMI shielding [71], OFETs [72], anti-corrosion coatings [73], and so forth.…”

Section: Conductivity Enhancement Of Pani:csamentioning

confidence: 99%

“…Rapid and reversible doping/dedoping processes make PANI:CSA suitable as efficient sensors in detecting ammonia (NH 3 ) gases [56,65,70]. When the PANI:CSA were combined with tin (II) oxide nanoparticles (SnO 2 NPs) and GNFs, the composite electrodes demonstrated higher sensitivity, faster response, and better selectivity toward NH 3 when compared with the pure PANI:CSA [56,65]. Furthermore, the SnO 2 NPs and GNFs could greatly improve the lifetime and structural stability of the PANI:CSA.…”

Section: Pani:csa For Other Applications: Chemical Sensor Antenna Ementioning

confidence: 99%

“…The PANI:CSA/SnO 2 composite exhibited superior sensing performances when compared with the pristine PANI and pristine SnO 2 NPs due to the synergistic effects of the PANI:CSA and SnO 2 NPs [56]. The PANI:CSA combined with carbon nanomaterials provides higher electrical conductivity and improved flexibility compared to pristine PANI:CSA due to the π−π interactions between the PANI:CSA chains and carbon nanomaterials [6,17,20,[58][59][60][61][62][63]65,66]. These advantages of PANI:CSA/carbon composites are suitable for antenna applications.…”

Section: Pani:csa For Other Applications: Chemical Sensor Antenna Ementioning

confidence: 99%

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Recent Developments of the Solution-Processable and Highly Conductive Polyaniline Composites for Optical and Electrochemical Applications

2019

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Solution-processable conducting polymers (CPs) are an effective means for producing thin-film electrodes with tunable thickness, and excellent electrical, electrochemical, and optical properties. Especially, solution-processable polyaniline (PANI) composites have drawn a great deal of interest due to of their ease of film-forming, high conductivity up to 103 S/cm, excellent redox behaviors, processability, and scalability. In this review, basic principles, fabrication methods, and applications of solution-processable PANI composites will be discussed. In addition, recent researches on the PANI-based electrodes for solar cells (SCs), electrochromic (EC) windows, thermoelectric (TE) materials, supercapacitors, sensors, antennas, electromagnetic interference (EMI) shielding, organic field-effect transistors (OFETs), and anti-corrosion coatings will be discussed. The presented examples in this review will offer new insights in the design and fabrication of high-performance electrodes from the PANI composite solutions for the development of thin-film electrodes for state-of-art applications.

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“…Recently, fluorescent conjugated polymers (FCPs), such as polyaniline (PANI), polythiophene (PTPH) and their derivatives, have received significant attention as ideal chemosensing and biosensing materials due to their flexibility in molecular design and prominent signal amplification properties [17,18,19,20,21,22,23,24,25]. Noteworthy, FCPs have a delocalized electronic structure and a large absorption cross-section, which make them attractive as signal transducers in tracing targets even in extremely dilute concentrations [26].…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Detection of Benzoyl Peroxide Based on Organoboron Fluorescent Conjugated Polymers

Yin

Zhang

et al. 2019

Polymers

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The method capable of rapid and sensitive detection of benzoyl peroxide (BPO) is necessary and receiving increasing attention. In consideration of the vast signal amplification of fluorescent conjugated polymers (FCPs) for high sensitivity detection and the potential applications of boron-containing materials in the emerging sensing fields, the organoboron FCPs, poly (3-aminophenyl boronic acid) (PABA) is directly synthesized via free-radical polymerization reaction by using the commercially available 3-aminophenyl boronic acid (ABA) as the functional monomer and ammonium persulfate as the initiator. PABA is employed as a fluorescence sensor for sensing of trace BPO based on the formation of charge-transfer complexes between PABA and BPO. The fluorescence emission intensity of PABA demonstrates a negative correlation with the concentration of BPO. And a linear range of 8.26 × 10−9 M–8.26 × 10–4 M and a limit of detection of 1.06 × 10–9 M as well as a good recovery (86.25%–111.38%) of BPO in spiked real samples (wheat flour and antimicrobial agent) are obtained. The proposed sensor provides a promising prospective candidate for the rapid detection and surveillance of BPO.

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Fabrication and Characterizations of a Novel Etched-tapered Single Mode Optical Fiber Ammonia Sensors Integrating PANI/GNF Nanocomposite

Cited by 42 publications

References 25 publications

Gas Sensors Based on Conducting Polymers

Gas Sensors Based on Conducting Polymers

Recent Developments of the Solution-Processable and Highly Conductive Polyaniline Composites for Optical and Electrochemical Applications

Highly Sensitive Detection of Benzoyl Peroxide Based on Organoboron Fluorescent Conjugated Polymers

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