Investigation of optical energy band gap of transition metal oxide/polystyrene nanocomposite foils

Barala, Monika; Siwach, Bulkesh; Sangwan, Reetu; Yadav, Kavita; Mohan, Devendra; Sanghi, Sujata

doi:10.1016/j.matpr.2021.10.404

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…The solution casting method was used to prepare pure PS and ZnO nanoparticle embedded polymer nanocomposite foils [12]. The following two processes were used to prepare PS/ZnO nanocomposite foils with various wt % of ZnO nanoparticles:…”

Section: Preparation Of Ps and Ps/zno Nanocomposite Foilsmentioning

confidence: 99%

Third order nonlinearity and optical power limiting studies of PS/ZnO nanocomposite foils for photonic applications

Barala

Maidur²,

Mohan

et al. 2022

Phys. Scr.

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The present work focuses on the preparation of Polystyrene (PS) and PS/ZnO nanocomposite foils by solution casting method and study their structural and nonlinear optical (NLO) characterizations. The Zinc Oxide (ZnO) nanoparticles were synthesized by Sol-gel method. Structural analysis of the prepared nanocomposite foils was carried out by X-ray diffraction (XRD) with an estimated average crystallite size of 27.33 nm. UV-Vis-NIR spectra reveal that the nanocomposite foils are transparent in the visible region. FESEM micrographs show the surface morphology of the prepared nanocomposite foils. Energy Dispersive X-Ray Spectroscopy (EDX) of the prepared foils confirmed the compositional and spatial distribution of the elements. The NLO properties such as nonlinear absorption coefficient (β), nonlinear index of refraction (n2), and third-order nonlinear susceptibility (χ⁽³⁾) were investigated by Z-scan technique at a wavelength of 532 nm and 200 mW with field intensity I_0=5.43 KW cm^(-2).The values of β were found to bein the order of ~ 10-7 cm/W, n2 in the order of ~10-12 cm2/W and χ⁽³⁾ in the range 4.99 x 10-7-38.7 x 10-7e.s.u. Further, the optical power limiting threshold was calculated to be 3.646 KW/cm2 for 8 wt % of PS/ZnO nanocomposite foil which is a better candidate to act as an optical limiter. The figure of merit has also been determined that establishes the suitability of nanocomposite foils for optical limiting and/or optical switching applications in the visible region.

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Section: Preparation Of Ps and Ps/zno Nanocomposite Foilsmentioning

confidence: 99%

Third order nonlinearity and optical power limiting studies of PS/ZnO nanocomposite foils for photonic applications

Barala

Maidur²,

Mohan

et al. 2022

Phys. Scr.

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“…The Zn 2+ ions are substituted into Fe 3+ ionic sites, then they can prevent additional free carriers which lead to an increase of energy needed for band gap transition [35,39]. The decrease of the ion transport between the polyblend and inorganic phase may be responsible for the decrease in band gap energy [2].…”

Section: Optical Analysismentioning

confidence: 99%

“…Recently, applications posed strong desires for materials, which are relatively more difficult to meet using single-component structures and equable to a single class of materials, like only organic or only inorganic materials. In hybrid matrices, organic and inorganic constituents are repeatedly integrated through the same assembly that yields organicinorganic hybrid systems that combine the auspicious properties of both types of structure blocks as evinced [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Sol-Gel/Gel Casting Nanoarchitectonics of Hybrid Fe2O3–ZnO/PS-PEG Nanocomposites and Their Optomagnetic Properties

Mansour

Elhelali

Nahrawy

2022

J Inorg Organomet Polym

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Polymer networks incorporated with iron and zinc oxide nanoparticles have superparamagnetic and electrical characteristics where it can be employed in a variety of significant applications. To achieve optimal distribution and connection of nanoparticles in various polymeric matrices, it is required to investigate their dispersion performance with varied contents and the impact on their physical characteristics. A controlled sol-gel method is used combined with gel casting to synthesize organic-inorganic nanocomposites of (ZnO)x(1 − x)Fe2O3 loaded within a polystyrene-polyethylene glycol matrix. The structural and morphological assembly of the hydrogen bonds between the inorganic and organic parts is verified using X-ray diffraction (XRD) and scanning/transmission electron microscope (SEM/TEM) for the synthesized nanocomposites. The existence of the Fe aggregates, Zn/Fe pairs, and organic molecules was also confirmed by FTIR spectra. Optical and magnetic properties were evaluated. The band gap, refractive index, optical dielectric constant, and optical electronegativity were extracted.

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Plant-mediated synthesis of Ag and Se dual-doped ZnO-CaO-CuO nanocomposite using Nymphaea alba L. extract: assessment of their photocatalytic and biological properties

Sabouri,

Moghaddas

et al. 2023

Biomass Conv. Bioref.

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Investigation of optical energy band gap of transition metal oxide/polystyrene nanocomposite foils

Cited by 3 publications

References 10 publications

Third order nonlinearity and optical power limiting studies of PS/ZnO nanocomposite foils for photonic applications

Third order nonlinearity and optical power limiting studies of PS/ZnO nanocomposite foils for photonic applications

Sol-Gel/Gel Casting Nanoarchitectonics of Hybrid Fe2O3–ZnO/PS-PEG Nanocomposites and Their Optomagnetic Properties

Plant-mediated synthesis of Ag and Se dual-doped ZnO-CaO-CuO nanocomposite using Nymphaea alba L. extract: assessment of their photocatalytic and biological properties

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