Impact of ZnO on the spectroscopic, mechanical, and UPF properties of Fe2O3-tough polystyrene-based nanocomposites

Nahrawy, Amany M. El; Montaser, A.S.; Bakr, Abu; Mansour, A. M.

doi:10.1007/s10854-021-07182-w

Cited by 30 publications

(8 citation statements)

References 63 publications

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“…XRD patterns: XRD analysis examines the crystalline order of materials. 73,[77][78][79][80] Figure 6 illustrates the XRD patterns of CNT powder and SCNT samples (0.5, 1.5, 3, and 3.5 wt. % of CNT).…”

Section: Characterization Of Scnt Samplesmentioning

confidence: 99%

Production and an advanced model for electrical conductivity of silicone rubber/carbon nanotube nanocomposites as outdoor insulator housing material

Mohammadnabi

Rahmani

2023

Journal of Composite Materials

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Considerable cause of the condensation mechanism of moisture and fog on the contaminated high-voltage insulator surface is the temperature difference between the insulator surface and the dew point which eventuate owing to the mechanism of radiative cooling. Condensation of moisture leads to creating a conducting path on the insulator surface and make the insulator to be a conductor and results in the electrical transmission line failure. In order to cover the above-mentioned temperature difference, carbon nanotubes (CNTs) are being applied to the silicone rubber which is the insulator housing material. This study is based on joule heating generation which decrease the electrical resistance of the high-voltage insulator surface. An advanced mathematical model which is based on Pukanszky formulation for estimation of composite tensile strength was presented for the effectual electrical conduction of silicone rubber - carbon nanotube nanocomposite (SCNT). SCNT samples were produced by the addition of dissimilar CNT concentrations to a high temperature vulcanizing (HTV) silicone rubber by solution-blending method. Comparison between experimental results and theoretical forecasts showed an excellent agreement. The obtained model disclosed that the lower ranks of tunneling resistivity and distance, the higher magnitudes of tunneling diameter, the higher concentration of longer and thinner CNTs, lower CNT curliness, higher fraction of networked CNTs, and deeper interphase can produce the maximum level of SCNT conductivity.

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Section: Characterization Of Scnt Samplesmentioning

confidence: 99%

Production and an advanced model for electrical conductivity of silicone rubber/carbon nanotube nanocomposites as outdoor insulator housing material

Mohammadnabi

Rahmani

2023

Journal of Composite Materials

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“…Nanocomposites demonstrate tremendous promise in a wide range of applications, including optoelectronics, vehicles, drugs, detectors, membranes, packaging, space, coatings, glues, medical patient care, and others 2 , 8 . The incorporation of nanoparticles into the matrix can be achieved through three primary methods: mixing preformed nanoparticles with the matrix, synthesizing the matrix in the presence of nanoparticles, or synthesizing nanoparticles within the matrix itself 4 , 9 , 10 .…”

Section: Introductionmentioning

confidence: 99%

Exploring nanoarchitectonics and optical properties of PAA-ZnO@BCP wide-band-gap organic semiconductors

Mansour,

Abou Hammad,

El Nahrawy

2024

Sci Rep

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This work reports the formation of polyacrylic acid (PAA)—zinc oxide (ZnO)—bromocresol purple (BCP), (PAA-ZnO@ (0.00–0.01) BCP wide-bandgap organic semiconductors deposited onto glass substrates via a sol–gel polymerization process. These semiconductor films were deposited on glass substrates using a spin coating and then dried at 60 °C. The PAA-ZnO film appeared to be of amorphous phase, and films loaded with BCP revealed semicrystalline behavior. The surface of the films exhibited adherence and extended grains. The hydrogen bonds formed between PAA-ZnO and the BCP dye within the PAA-ZnO@BCP films was performed using FTIR-spectroscopy. The prepared nanocomposites demonstrate an indirect band transition which is affected slightly by adding ZnO and BCP dye. Optical parameters such as the absorption coefficient, the refractive index, the dielectric constant, optical conductivity, optical depth, and optical electronegativity of the prepared nanocomposites were studied as functions of incident light energy (wavelength). The PAA carbonyl group n-π* transition and BCP aromatic ring π-π* transitions were detected at about 285 (for all samples) and 432 nm (for BCP loaded samples), respectively. The superior photoluminescence characteristics observed in the BCP/PAA-Zn films excited with a wavelength of 250 nm indicated the successful loading of the BCP dye during the self-aggregation of the PAA-Zn film.

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“…In recent years, zinc oxide (ZnO) has received a lot of attention due to the fact that its unusual features can be used in numerous technologies, such as solar cells [ 1 ], sensors [ 2 ], transparent electrodes [ 3 ], and light emitting diodes (LED) [ 4 , 5 ]. ZnO has been identified as a leading candidate for the development of high-performance opto-electronic devices due to its n-type wide-band gap material status (3.37 eV) and high exciton binding energy (60 meV) at ambient temperature [ 6 , 7 ]. To be more specific, it has been looked at as a possible replacement for indium tin oxide (ITO) material, which is one of the most well-known TCOs due to its great optical transparency and low electrical resistivity [ 3 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Sn-doping on the optoelectronic properties of zinc oxide crystal: DFT approach

Kumar,

Pandey,

Ravi

et al. 2024

PLoS ONE

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This study aims to provide a concise overview of the behavior exhibited by Sn-doped ZnO crystals using a computational technique known as density functional theory (DFT). The influence of Sn doping on the electronic, structural, and optical properties of ZnO have been explored. Specifically, the wavelength dependent refractive index, extinction coefficient, reflectance, and absorption coefficient, along with electronic band gap structure of the Sn doped ZnO has been examined and analyzed. In addition, X-ray diffraction (XRD) patterns have been obtained to investigate the structural characteristics of Sn-doped ZnO crystals with varying concentrations of Sn dopant atoms. The incorporation of tin (Sn) into zinc oxide (ZnO) has been observed to significantly impact the opto-electronic properties of the material. This effect can be attributed to the improved electronic band structure and optical characteristics resulting from the tin doping. Furthermore, the controllable structural and optical characteristics of tin-doped zinc oxide will facilitate the development of various light-sensitive devices. Moreover, the impact of Sn doping on the optoelectronic properties of ZnO is thoroughly investigated and documented.

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Impact of ZnO on the spectroscopic, mechanical, and UPF properties of Fe2O3-tough polystyrene-based nanocomposites

Cited by 30 publications

References 63 publications

Production and an advanced model for electrical conductivity of silicone rubber/carbon nanotube nanocomposites as outdoor insulator housing material

Production and an advanced model for electrical conductivity of silicone rubber/carbon nanotube nanocomposites as outdoor insulator housing material

Exploring nanoarchitectonics and optical properties of PAA-ZnO@BCP wide-band-gap organic semiconductors

Impact of Sn-doping on the optoelectronic properties of zinc oxide crystal: DFT approach

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