Influence of green synthesized gold nanoparticles on the structural, optical, electrical and dielectric properties of (PVP/SA) blend

Abdelghany, A.M.; Oraby, A.H.; Farea, M. O.

doi:10.1016/j.physb.2019.02.029

Cited by 119 publications

(43 citation statements)

References 46 publications

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“…This influence of the filler on the host PVP backbone affects its chains' potential energy [35], and hence the whole optical properties of the polymeric composite films as shown below. Our result agrees with the reported ones [32,37].…”

Section: Ft-ir Analysissupporting

confidence: 94%

“…1a), there exist many pronounced bands at 3053-3697, 2951, 2917, 1660, 1494, 1465, 1418, 1376 and 1294 cm −1 in addition to other small ones. These bands and peaks refer to stretching vibration of OH [32,33], CH 2 asymmetric stretching [32], CH 2 vibration [34], stretching of C═O [35], stretching vibration of C═N, CH bending [35], CH 2 scissoring vibrations [32,35], CH 2 bending [11,35] and CH 2 twisting or wagging vibration [35,36] respectively. As compared with the FT-IR spectrum of the plain PVP film ( Fig.…”

Section: Ft-ir Analysismentioning

confidence: 99%

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Enhancement of the optical properties of PVP using Zn1-xSnxS for UV-region optical applications

Badawi

2021

Appl. Phys. A

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The optical properties of polyvinylpyrrolidine (PVP) polymer have been enhanced using ternary Zn 1-x Sn x S as a filler for UVregion optical applications. Solution casting technique is used to prepare different Sn molar ratios (x: 0-0.3) in Zn 1-x Sn x S filled PVP polymeric composite films (1.0 wt.%). SEM, FT-IR and UV-visible-NIR spectrophotometry is utilized to characterize the optical properties of the plain PVP and polymeric composite films. SEM images reveal the homogeneous dispersion of the filler (Zn 1-x Sn x S) in the host PVP matrix. The FT-IR spectroscopic measurements ensure the successful interaction of ternary Zn 1-x Sn x S material and the host PVP polymer. The cut off transmittance edge is shifted from 260 nm (host PVP) to 390 nm (polymeric composite). The direct optical energy bandgap of the prepared polymeric composite films are shifted from 4.78 eV (plain PVP) to 3.45 eV for Zn 0.7 Sn 0.3 S polymeric composite film. An enhancement of the refractive index (n) and the optical conductivity (σ opt.) of the polymeric composite films is achieved as compared with those of the plain one. The single oscillator (E 0) and dispersion (E d) energies of the polymeric composite films were determined using Wemple and DiDomenico (WDD) model. The prepared polymeric composite films are strongly recommended for UV-region optical applications.

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Section: Ft-ir Analysissupporting

confidence: 94%

Section: Ft-ir Analysismentioning

confidence: 99%

Enhancement of the optical properties of PVP using Zn1-xSnxS for UV-region optical applications

Badawi

2021

Appl. Phys. A

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“…Blending polymer products is the latest technique for optimizing different polymer matrices and is a valuable method for producing substances with an extensive diversity of characteristics. 1 Polymer characteristics may be improved by combining two or more polymers and/or adding organic/inorganic llers for use in various applications. 2 The melt blending and solvent casting routes are the most common ways for the manufacturing of polymer blends or composites.…”

Section: Introductionmentioning

confidence: 99%

Optical and dielectric characteristics of polyethylene oxide/sodium alginate-modified gold nanocomposites

2020

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“…Importantly, the accurate selection of the host material and nano-filler is very critical for the manufacture of nanocomposites, which has a significant impact on their use and the efficiency of the devices [9]. Gold nanoparticles have received much attention because of their unique properties, such as non-cytotoxic, chemical inertness optical and electronic properties [10,11]. The development of successful green synthesis without the use of dangerous chemicals using natural reduction, capping, and stabilizing agents have attracted researchers towards green chemistry methods.The goal of adding metal nanoparticles inside polymeric matrices to develop the properties of the polymers.…”

Section: I-introductionmentioning

confidence: 99%

Enhanced optical, morphological, dielectric, and conductivity properties of gold nanoparticles doped with PVA/CMC blend as an application in organoelectronic devices

Atta

Alsulami

Asnag

et al. 2021

J Mater Sci: Mater Electron

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Stevia rebaudiana plant leaves were used for biosynthesis of gold nanoparticles (AuNPs). Transmission electron microscope (TEM) images showed various shapes and sizes of AuNPs. Various amounts of AuNPs were added to polyvinyl alcohol/carboxymethylcellulose (PVA/CMC, 40/60) via the casting method. The X-ray diffraction (XRD) spectrum of pure blend shows the amorphous nature of the blend. FT-IR spectra showed the interaction between PVA/CMC and AuNPs. The ultra-violet and visible (UV/VIS.) spectra showed emerge new peak of surface plasmon resonance (SPR) of AuNPs for the filled samples. SEM images showed bright spots on the sample's surface, which was attributed to AuNPs. AC conductivity exhibited enhancement after the addition of gold nanoparticles. The ε′ and ε″ were reduced with increasing the frequency due to direction dipoles of applied electric field. Because of the mobile charges inside the polymeric backbone, higher values of ε′ and ε″ were observed at low frequencies. The tanδ showed increased with an increase in AuNPs concentration and at the decrease the frequency, as expected.

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Influence of green synthesized gold nanoparticles on the structural, optical, electrical and dielectric properties of (PVP/SA) blend

Cited by 119 publications

References 46 publications

Enhancement of the optical properties of PVP using Zn1-xSnxS for UV-region optical applications

Enhancement of the optical properties of PVP using Zn1-xSnxS for UV-region optical applications

Optical and dielectric characteristics of polyethylene oxide/sodium alginate-modified gold nanocomposites

Enhanced optical, morphological, dielectric, and conductivity properties of gold nanoparticles doped with PVA/CMC blend as an application in organoelectronic devices

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