Fabrication and characterization of PSi/nanometal hybrid structures by laser for CO gas sensor

Dheyab, Amer B.; Mohammed, Safaa I.; Mustafa, Marwa Kamal; Fayadh, Rasha Saad; Hussein, Noor Luay

doi:10.1007/s40094-020-00368-3

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…Nanomaterial used as sensors must be sensitive, selective, and stable and are often designed using interfacing scheme with amplification strategy [ 6 ] and electrostatic induction [ 7 ]. Properties of nanomaterial, such as triggering redox reaction towards H 2 S by lattice oxygen [ 8 ], generating invisible near-infrared patterns through photoreceptor-binding to retina [ 9 ], charge transfer phenomenon through altering hopping distance of the charge carrier exhibited in the composites of polyindole/MoO 3 -WO 3 [ 10 ], and surface reactions at Mesoporous silicon layers [ 11 ] sensitive to CO 2 , are thoroughly explored sensor materials.…”

Section: Properties Of Nanomaterials In Sensorsmentioning

confidence: 99%

Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications

Malini¹,

Roy

Raj³

et al. 2022

Polymers

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Nano-enabled sensing is an expanding interdisciplinary field of emerging science with dynamic multifunctional detecting capabilities, equipped with a wide range of multi-faceted nanomaterial having diverse dimensions and composition. They have proven to be highly robust, sensitive, and useful diagnostic tools ranging from advanced industrial processes to ordinary consumer products. As no single nanomaterial has proved to be unparalleled, recent years has witnessed a large number of nanomaterial-based sensing strategies for rapid detection and quantification of processes and substances with a high degree of reliability. Nano-furnished platforms, because of easy fabrication methods and chemical versatility, can serve as ideal sensing means through different transduction mechanisms. This article, through a unified experimental-theoretical approach, uses literature of recent years to introduce, evaluate, and analyze significant developments in the area of nanotechnology-aided sensors incorporating the various classes of nanomaterial. Addressing the broad interests, the work also summarizes the sensing mechanisms using schematic illustrations, attempts to integrate the performance of different categories of nanomaterials in the design of sensors, knowledge gaps, regulatory aspects, future research directions, and challenges of implementing such techniques in standalone devices. In view of a dependency of analysis and testing on sustained growth of sensor-supported platforms, this article inspires the scientific community for more attention in this field.

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Section: Properties Of Nanomaterials In Sensorsmentioning

confidence: 99%

Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications

Malini¹,

Roy

Raj³

et al. 2022

Polymers

View full text Add to dashboard Cite

show abstract

“…A sensor that can withstand high temperature is required for coal-fired power plants’ boilers’ on-site combustion tracking (Wang et al , 2020) and yttrium-stabilized zirconia (YSZ)-based potential sensors by means of porous NiO as sensing material have proven to be useful for the same. It was a great option because of its abilities to withstand high temperatures and have excellent sensitivity, selectivity and response times to CO. Porous silicon, due to its various benefits, including low power consumption and short transient thermal times, was used as a novel material for use in gas sensing applications (Dheyab et al , 2020). Adding a hybrid structure of metallic nanoparticles to the mesoporous silicon has significantly improved its performance at room temperature by enhancing the surface area and adsorption rate.…”

Section: Introductionmentioning

confidence: 99%

Recent development and challenges on design and fabrication of flexible substrate based carbon monoxide gas sensor: a review

Shweta

Jadav

Tripathi

2023

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Purpose Sensing technology has been extensively researched and used due to its applications in industrial production and daily life. Due to inherent limitations of conventional silicon-based technology, researchers are now-a-days paying more attention to flexible electronics to design low-cost, high-sensitivity devices. This observational and analytical study aims to emphasis on carbon monoxide gas sensor. This review also focuses the challenges faced by flexible devices, offers the most recent research on paper-based gas sensors and pays special focus on various sensing materials and fabrication techniques. Design/methodology/approach To get the better insight into opportunities for future improvement, a number of research papers based on sensors were studied and realized the need to design carbon monoxide gas sensor. A number of parameters were then gone through to decide the flexibility parameter to be considered for design purposes. This review also focuses on the challenges faced by flexible devices and how they can be overcome. Findings It has been shown that carbon monoxide gas, being most contaminated gas, needs to be fabricated to sense low concentration at room temperature, considering flexibility as an important parameter. Regarding this parameter, some tests must be done to test whether the structure sustains or degrades after bending. The parameters required to perform bending are also described. Originality/value Due to inherent limitations of conventional silicon-based technology, now-a-days attention is paid towards flexible electronics to design low-cost, high-sensitivity devices. A number of research articles are provided in the literature concerning gas sensing for different applications using several sensing principles. This study aims to provide a comprehensive overview of recent developments in carbon monoxide gas sensors along with the design possibilities for flexible paper-based gas sensors. All the aspects have been taken into consideration for the fabrication, starting with paper characterization techniques, various sensing materials, manufacturing methodologies, challenges in the fabrication of flexible devices and effects of bending and humidity on the sensing performance.

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“…However, for optoelectronics applications, electroluminescent materials have great attractiveness. However, this significance is not enough for practical used (Zayer et al 2019;Dheyab et al 2020;Xiang-Liang et al 2015;Narayan et al 2000). Device structures were made using a new method of (PSi) forming called metal-assisted chemical etching, as this type of structure can be used as a radiation photodetector.…”

Section: ) Introductionmentioning

confidence: 99%

An investigation of photo_electrical properties of silicon nanoparticles/PSi/p-Si hetero structures

2022

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In this work, two forms of nanocrystalline, were used (as-prepared macroPorous silicon and silicon nanoparticle) to synthesize hybrid structures for photodetectors applications. The fabrication pathway was carried out through two 2-steps processes. The 1-step was formation of as-prepared silicon nanoparticle (SiNPs), while and the 2-step was creation of low spam of macroPSi size substrate via electrochemical etching process in HF solutions. Specific features of SiNPs and low spam of macroPSi size substrate were explored using scanning electron microscopy SEM, energy-dispersive x-ray (EDX), Atomic Force Microscope (AFM), and photoluminescence (PL) spectroscopy respectively. Dark and photo current characteristics and spectral responsively of photodetectors were investigated for the macPSi layer and the hybrid structure. The performance of the hybrid configuration shows an improvement in the sensitivity of about 0.75 A/W with appearance of new additional peak at 450nm as compared with the PSi photodetector of about 0.93 A/W. The achieved improvement is related with the appearance of double Heterojunction device between PSi/si and SiNPs/PSi. Also this improvement may be related with the reduction of the reflectd light from the hybrid structure due to the multiple reflection between SiNPs/PSi. The quantum efficiency η of the photodetector in the spectral range 450-700 nm was found to be 65%.

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Fabrication and characterization of PSi/nanometal hybrid structures by laser for CO gas sensor

Cited by 4 publications

References 11 publications

Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications

Sensing beyond Senses: An Overview of Outstanding Strides in Architecting Nanopolymer-Enabled Sensors for Biomedical Applications

Recent development and challenges on design and fabrication of flexible substrate based carbon monoxide gas sensor: a review

An investigation of photo_electrical properties of silicon nanoparticles/PSi/p-Si hetero structures

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