Electrical Properties of MWCNT/HDPE Composite-Based MSM Structure Under Neutron Irradiation

Kasani, Hadi; Khodabakhsh, R.; Ahmadi, Mohammad Taghi; Ochbelagh, Dariush Rezaei; Ismail, Razali

doi:10.1007/s11664-017-5346-7

Cited by 8 publications

(9 citation statements)

References 48 publications

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“…Finally, these carbon ions quench on the surface of the cathode electrode and CNTs are produced. The results of SEM and FTIR spectrum analysis have confirmed the existence of CNTs synthesised by this method as reported in [23]. Consequently, these…”

Section: Cnt Productionsupporting

confidence: 82%

“…Electron transferring from the metallic source and drain electrodes makes the semiconducting CNTs, n‐doped. The sensing mechanism of CNT‐based DNA sensor is based on the adsorbing of ds‐DNA molecules with negative charges on their phosphate parts [23] on the CNT surface, which increases the electron concentration into the valence band of CNTs and leads to an increment in the CNT conductance. In order to investigate the temperature effect on DNA sensing phenomena, I–V curves for proposed CNT‐based sensor related to different temperatures are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Experimental and theoretical investigation of sensing parameters in carbon nanotube‐based DNA sensor

Nouri

Meshginqalam

Sahihazar

et al. 2018

IET nanobiotechnol.

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Nowadays, sensitive biosensors with high selectivity, lower costs and short response time are required for detection of DNA. The most preferred materials in DNA sensor designing are nanomaterials such as carbon and Au nanoparticles, because of their very high surface area and biocompatibility which lead to performance and sensitivity improvements in DNA sensors. Carbon nanomaterials such as carbon nanotubes (CNTs) can be considered as a suitable DNA sensor platform due to their high surface-to-volume ratio, favourable electronic properties and fast electron transfer rate. Therefore, in this study, the CNTs which are synthesised by pulsed AC arc discharge method on a high-density polyethylene substrate are used as conducting channels in a chemiresistor for the electrochemical detection of double stranded DNA. Moreover, the response of the proposed sensor is investigated experimentally and analytically in different temperatures, which confirm good agreement between the presented model and experimental data.

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Section: Cnt Productionsupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Experimental and theoretical investigation of sensing parameters in carbon nanotube‐based DNA sensor

Nouri

Meshginqalam

Sahihazar

et al. 2018

IET nanobiotechnol.

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“…This type of arrangement is known as a metal-semiconductor-metal (MSM) structure, with two back-to-back Schottky diodes. Our sample mainly consists of multiwall CNTs (MWCNTs) that have been previously reported in several analyses by our team to have a size on the nanometer scale [25][26][27][28][29]. In addition, as shown in Figure 3a, a finger-shaped qualitative surface morphology is identified by scanning electron microscopy (SEM) and in the focused part, the presence of cylindrical nanoparticles a few hundred nanometers in size is revealed ( Figure 3b).…”

Section: Experimental Frameworkmentioning

confidence: 83%

Carbon Nanoparticle-Based Electro-Thermal Building Block

et al. 2020

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All around the world, researchers have raised concerns about the superlative geometrical, electronic, thermal, chemical and mechanical properties of carbon nanoparticles (CNPs). CNPs with low cost, high performance and prominent intrinsic properties have attracted extensive interest for numerous applications in various fields. Although CNPs have been studied mainly as transistors and sensors, they could also be considered as heat producers. However, this option has scarcely been studied. In this research, a CNP-based electro-thermal building block is synthesized by the arc discharge method in a carbonic medium (high-density polyethylene), and its behavior is investigated. It is shaped in the form of a metal–semiconductor–metal structure (MSM) between metallic electrodes, and in addition, the formation of two back-to-back Schottky diodes is analyzed and their use as CNP-based electro-thermal building blocks are reported.

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“…Moreover, the Fourier transform infrared (FTIR) analysis as shown in Figure 2 f indicates the composite form of GNPs in HDPE. The peaks at 2926 cm −1 and 2853 cm −1 and 725 cm −1 signify the CH 2 groups in hydrocarbons [ 43 ]. The peak at 3443 cm −1 [ 43 ] and 3412 cm −1 [ 44 ] in the Fourier transform infrared (FTIR) (JASCO, Easton, MD, USA) spectrum of the GNPs can be assigned to the O-H vibration in the carboxyl group and the peaks at 1020–1090 cm −1 can be assigned to CNT-COOH and peaks at 1120 cm −1 signify the C=C, CNT, and the backbone of carbon nanotubes and peaks at 3700–3800 cm −1 can be assigned to CNT, OH groups from the unbound [ 45 ].…”

Section: Experimental Measurementsmentioning

confidence: 99%

“…The peaks at 2926 cm −1 and 2853 cm −1 and 725 cm −1 signify the CH 2 groups in hydrocarbons [ 43 ]. The peak at 3443 cm −1 [ 43 ] and 3412 cm −1 [ 44 ] in the Fourier transform infrared (FTIR) (JASCO, Easton, MD, USA) spectrum of the GNPs can be assigned to the O-H vibration in the carboxyl group and the peaks at 1020–1090 cm −1 can be assigned to CNT-COOH and peaks at 1120 cm −1 signify the C=C, CNT, and the backbone of carbon nanotubes and peaks at 3700–3800 cm −1 can be assigned to CNT, OH groups from the unbound [ 45 ]. Based on research in [ 43 , 44 , 45 , 46 , 47 , 48 , 49 ] and a comparison with the FTIR analysis taken from the sample, it can be concluded that the carbon nanoparticles grown also contained multiwall carbon nanotubes and GNPs.…”

Section: Experimental Measurementsmentioning

confidence: 99%

Graphene Nanoparticle-Based, Nitrate Ion Sensor Characteristics

et al. 2021

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Gathering and sensing of nitrate ions in the environment due to the abundant use in industry and agriculture have become an important problem, which needs to be overcome. On the other hand, new materials such as carbon-based materials with unique properties have become an ideal choice in sensing technology. In this research, the high-density polyethylene (HDPE) polymer as a carbon source in the melted form was used and carbon nanoparticles in the form of a strand between two electrodes were analyzed. It was fabricated between copper electrodes by the pulsed arc discharge method. Subsequently, the constructed metal–nanoparticle–metal (MNM) contact was employed to recognize the nitrate ions. Therefore, NaNO3, Pb(NO3)2, Zn(NO3)2, and NH4NO3 samples as a usual pollutant of industrial and agricultural wastewater were examined. All nitrate compounds in ten different densities were tested and sensor I-V characteristic was investigated, which showed that all the aforesaid compounds were recognizable by the graphene nano-strand. Additionally, the proposed structure in the presence of ions was simulated and acceptable agreement between them was reported. Additionally, the proposed structure analytically was investigated, and a comparison study between the proposed model and measured results was carried out and realistic agreement reported.

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Electrical Properties of MWCNT/HDPE Composite-Based MSM Structure Under Neutron Irradiation

Cited by 8 publications

References 48 publications

Experimental and theoretical investigation of sensing parameters in carbon nanotube‐based DNA sensor

Experimental and theoretical investigation of sensing parameters in carbon nanotube‐based DNA sensor

Carbon Nanoparticle-Based Electro-Thermal Building Block

Graphene Nanoparticle-Based, Nitrate Ion Sensor Characteristics

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