A facile method to prepare g-carbon nitride/poly(vinyl alcohol) nanocomposite films with remarkable optoelectrical properties: Laser attenuation approach

Ismail, A. M.; Mohammed, M.I.; Yahia, I.S.

doi:10.1016/j.optlastec.2020.106600

Cited by 16 publications

(21 citation statements)

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“…This is because of the addition of nanocomposite molecules that contain electrons in their outer orbits that absorb the electromagnetic energy of the incident light, causing electrons to be excited to higher energy levels. Because there are no free electrons (i.e., electrons are strongly linked to their atoms through covalent bonds), breaking electron linkage and moving to the conduction band requires photons with high energy 11,30 . Pure polymethyl methacrylate (PMMA), on the other hand, has a high transmittance because there are no free electrons (i.e., electrons are strongly linked to their atoms through covalent bonds).…”

Section: Optical Analysis Studies Of G‐c3n4/pmma Nanocomposite Filmsmentioning

confidence: 99%

“…When the g‐C 3 N 4 nanocomposite concentrations were increased, normalized power measurements revealed an exponential variation and a severe loss in yield. As a result, there's a lot of overlap with other works 11,60–62 …”

Section: Optical Analysis Studies Of G‐c3n4/pmma Nanocomposite Filmsmentioning

confidence: 99%

“…Further, many studies on the impact of different types of dopants C 3 N 4 on polymer characteristics are available 14 . A.M. Ismail, et al studied the effect of C 3 N 4 nanoparticles on the optical properties of PVA, 11 M.S. Hussien et al study graphene‐doped PMMA environmental photocatalytic 17 …”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization g‐C₃N₄‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Mohammed

Yahia

Farid

2022

J of Applied Polymer Sci

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Solution casting was used to synthesis polymethyl methacrylate (PMMA) nanocomposites with graphitic carbon nitride (g‐C3N4) nanoparticles in various percentages (0.033, 0.166, 0.33, 1.665, and 3.3 wt%). XRD patterns confirmed the amorphous nature of PMMA/C3N4 nanocomposites. Optical constants are obtained at room temperature in the 200–2500 nm wavelength range. The optical band gaps of PMMA/C3N4 doped films, both direct and indirect, are measured and have values change from 4.8 to 2.32 eV for Enormalgind and changes from 5 to 3.7 eV for Enormalgnormald. The refractive index values of the materials were also calculated using Moss, Reddy, Anani, and Kumar‐Singh relationships with average values vary from (2.109 to 2.529) and vary from 2.155 to 2.32 for indirect and direct transition, respectively. The dielectric constant, dielectric loss, and AC electrical conductivity at RT and the g‐C3N4 doping level was examined as frequency variables from 100 to 1 MHz. In consideration of Jonscher's universal power law, the variation of σAC with frequency was examined. The addition of C3N4 appears to raise the σAC of the studied films, making them attractive for semiconductor applications. According to the optical limiting results, the samples doped with g‐C3N4 are severely attenuated for the laser beam of 638.2 nm. PMMA doped with g‐C3N4 is a viable contender for electronic and optoelectronic applications, particularly laser power reduction.

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Section: Optical Analysis Studies Of G‐c3n4/pmma Nanocomposite Filmsmentioning

confidence: 99%

Section: Optical Analysis Studies Of G‐c3n4/pmma Nanocomposite Filmsmentioning

confidence: 99%

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Synthesis and characterization g‐C₃N₄‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Mohammed

Yahia

Farid

2022

J of Applied Polymer Sci

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“…The refractive indices and energy gaps of polyvinyl alcohol composites used for developing PSVR and OLR models were extracted from the literature [ 6 , 7 , 12 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. The energy gaps and refractive indices dataset was extracted from sixty-three composite samples of polyvinyl alcohol.…”

Section: Hybrid Particle Swarm-based Support Vector Regression Model Developmentmentioning

confidence: 99%

Modeling the Optical Properties of a Polyvinyl Alcohol-Based Composite Using a Particle Swarm Optimized Support Vector Regression Algorithm

Owolabi

Rahman

2021

Polymers

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We developed particle swarm optimization-based support vector regression (PSVR) and ordinary linear regression (OLR) models for estimating the refractive index (n) and energy gap (E) of a polyvinyl alcohol composite. The n-PSVR model, which can estimate the refractive index of a polyvinyl alcohol composite using the energy gap as a descriptor, performed better than the n-OLR model in terms of root mean square error (RMSE) and mean absolute error (MAE) metrics. The E-PSVR model, which can predict the energy gap of a polyvinyl alcohol composite using its refractive index descriptor, outperformed the E-OLR model, which uses similar descriptor based on several performance measuring metrics. The n-PSVR and E-PSVR models were used to investigate the influences of sodium-based dysprosium oxide and benzoxazinone derivatives on the energy gaps of a polyvinyl alcohol polymer composite. The results agreed well with the measured values. The models had low mean absolute percentage errors after validation with external data. The precision demonstrated by these predictive models will enhance the tailoring of the optical properties of polyvinyl alcohol composites for the desired applications. Costs and experimental difficulties will be reduced.

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“…7 Very recently, A.M. Ismail et al have been designed a new optical system based on g-carbon nitride doped PVA and has reported an enhanced refractive index from 1.31 to 1.69 for pristine to 14.8 wt% g-C3N4/PVA film. 8 In an alternative approach, Manuela Russo et al have developed solution-processed Titanium oxide hydrates/PVA hybrid materials with an extinction coefficient ⁓<0.01, and a refractive index, which can be controlled to adopt values between 1.5 and at least 2.1 and have also demonstrated through production of lenses and dielectric filters of ⁓100% reflectivity in a given wavelength regime. 9 Moreover, in recent times, Yixuan Han et al have investigated the temperature-dependent refractive index with decreasing thickness n(h) for supported films of three polymers: poly(2-vinyl pyridine) (P2VP), polymethylmethacrylate (PMMA), and polystyrene (PS) that are found to exhibit a large distinctive increase in refractive index n(h) for very thin films below h ≲ 40 nm for PS, h ≲ 50 nm for P2VP, and h ≲ 65 nm for PMMA.…”

Section: Introductionmentioning

confidence: 99%

Development of Zn_1−xBa_xO nanoparticles reinforced poly(vinyl alcohol) macromolecular nanocomposite films: Eco‐friendly integrated materials for optical systems

Chandrappa

Bhajantri

ISMAYIL

et al. 2022

J of Applied Polymer Sci

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In this paper, we report the synthesis of Ba doped ZnO (Zn1−xBaxO, [x = 0.05]) nanoparticles (NPs) with a polycrystalline hexagonal wurtzite structure using chemical co‐precipitation method and prepared optically transparent, high refractive index polymer nanocomposite films by incorporating Zn1−xBaxO into poly(vinyl alcohol) (PVA) matrix. The average crystallite size of 104 nm was estimated by Scherrer's formula from X‐ray diffraction (XRD) patterns. The crystallinity of the composite film is significantly increased when Zn1−xBaxO NPs are added. The basic principles and theoretical aspects of scattering, transparency and refractive index of the composite structures are discussed. The formation of ZnBaO inter metallic bond was confirmed by the IR peaks that appear at the spectral wavenumbers (⁓596–608) cm−1. ATR‐FTIR spectral transmittance strongly proves the intermolecular interactions that occur in the composite film with molecular modification and various functional group impressions. UV–Vis absorption spectrum demonstrates a strong absorption edge around 379 nm owing to oxygen species corresponding to ZnBaO nanostructures in the composite films. The developed polymer composite films yielded strikingly higher RI value of ⁓(n = 2.5) having Abbe's number (υD = 10) with 57% plus transparency for 5 wt% NPs (ZBP‐3) with sufficiently low extinction coefficient values (k⁓10−4). Optical conductivity (σopt) was found to elevate from σopt ⁓ (4.465 × 1010) s−1 for pristine PVA to a σopt ⁓ (1.309 × 1012) s−1 for 5 wt% Zn0.95Ba0.05O filled composite films. Differential scanning calorimetry analysis showed a significant increase in the Tg value. The significant increase in Tm and Td > 311°C values indicates excellent thermal stability. Hence, the nanocomposite films demonstrated an integrated system of excellent refractive index, considerable visual transparency and excellent thermal stability, establishing their potential for use as a wider spectrum of optical system requirements.

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A facile method to prepare g-carbon nitride/poly(vinyl alcohol) nanocomposite films with remarkable optoelectrical properties: Laser attenuation approach

Cited by 16 publications

References 50 publications

Synthesis and characterization g‐C₃N₄‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Synthesis and characterization g‐C₃N₄‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Modeling the Optical Properties of a Polyvinyl Alcohol-Based Composite Using a Particle Swarm Optimized Support Vector Regression Algorithm

Development of Zn_1−xBa_xO nanoparticles reinforced poly(vinyl alcohol) macromolecular nanocomposite films: Eco‐friendly integrated materials for optical systems

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A facile method to prepare g-carbon nitride/poly(vinyl alcohol) nanocomposite films with remarkable optoelectrical properties: Laser attenuation approach

Cited by 16 publications

References 50 publications

Synthesis and characterization g‐C3N4‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Synthesis and characterization g‐C3N4‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Modeling the Optical Properties of a Polyvinyl Alcohol-Based Composite Using a Particle Swarm Optimized Support Vector Regression Algorithm

Development of Zn1−xBaxO nanoparticles reinforced poly(vinyl alcohol) macromolecular nanocomposite films: Eco‐friendly integrated materials for optical systems

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Product

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Synthesis and characterization g‐C₃N₄‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Synthesis and characterization g‐C₃N₄‐doped PMMA polymeric nanocomposites films for electronic and optoelectronic applications

Development of Zn_1−xBa_xO nanoparticles reinforced poly(vinyl alcohol) macromolecular nanocomposite films: Eco‐friendly integrated materials for optical systems