Optical properties of PVA films with diamond and titania nanoparticles

Vlaeva, I.; Yovcheva, T.; Sainov, S.; Dragostinova, Violeta; Stavrev, S.

doi:10.1088/1742-6596/253/1/012027

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…Figure S2a, Supporting Information, displays the variation of n of the samples with the wavelength, λ , with the smallest values at a high wavelength for all samples; these results agree with I. Vlaeva. [ 46 ] Pure 20PS/80PMMA blend has a various values of n (1.46–1.63). n rises when 1 wt% of various fillers is implanted and evenly distributed in the PS/PMMA blend.…”

Section: Resultsmentioning

confidence: 99%

Optical and Electrical Properties of Polystyrene/Poly‐methyl methacrylate Polymeric Blend Filled with Semiconductor and Insulator Nanofillers

El-Gamal

2023

Physica Rapid Research Ltrs

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The present study deals with the effect of adding different fillers (semiconductor and insulator) on a polystyrene (PS)/poly‐methyl methacrylate (PMMA) polymer blend using casting method. A constant content (1 wt%) of semiconductors [multiwalled carbon nanotubes (MWCNTs), polyaniline (PANI), zinc oxide nanoparticles (NPs), and titanium dioxide NPs] and insulator [silicon dioxide NPs] fillers is used. Transmission electron microscopy images for MWCNTs show that most nanotubes have an average diameter of 7–11 nm. Moreover, the average size of all metal nano‐oxides is almost 20 nm and confirmed by X‐ray diffraction. Fourier‐transform infrared spectroscopy confirms the formation and the interaction between PS/PMMA polymer blend and fillers. The structural, mechanical, optical, and dielectric properties of the prepared polymer nanocomposites are studied using different tools. Optical characteristics such as absorbance, reflection, bandgap energy (E g), and optical dielectric components (real and imaginary) are studied. These results reveal that pure 20PS/80PMMA film has E g(direct) = 4.46 eV, which drops as different fillers are incorporated into the blend. The addition of MWCNTs, PANI to the PS/PMMA blend improves the electrical conductivity due to the growth of conductive paths between the filler and the blending matrix.

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Section: Resultsmentioning

confidence: 99%

Optical and Electrical Properties of Polystyrene/Poly‐methyl methacrylate Polymeric Blend Filled with Semiconductor and Insulator Nanofillers

El-Gamal

2023

Physica Rapid Research Ltrs

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“…The study on the refractive index of composite polymeric film 8 has uncovered novel insights into its optical properties, including scattering, absorption, and interference effects. 54 The refractive index progressively drops in the 300-400 nm region because of the strong light scattering characteristics of TACs, possible absorption, and the impacts of the activated charcoal-polymer interface. A notable refractive index minimum at 500 nm advocates specific resonance or interference phenomena, a discovery that has not been reported before.…”

Section: Optical Studymentioning

confidence: 99%

Synergistic fabrication, characterization, and prospective optoelectronic applications of DES grafted activated charcoal dispersed PVA films

Lokesh Kumar,

Binish,

Rajprasad

et al. 2024

Polymers for Advanced Techs

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This study investigates the synthesis, analysis, and utility of films comprising deep eutectic solvent (DES) grafted activated charcoal (AC) within a polyvinyl alcohol (PVA) matrix for optoelectronic device applications. The fabrication process involves the dispersion of DES functionalization AC into the PVA solution, followed by casting onto substrates with controlled drying. Comprehensive characterization encompassing X‐ray diffraction (XRD), scanning electron microscopy (SEM), UV–vis spectroscopy, Fourier‐transform infrared spectroscopy (FTIR), and impedance spectroscopy which discerns the films microstructure, morphology, conductance, band‐gap, and optical traits. The DES grafted AC infusion with variable concentration has significantly influenced optical absorbance and reduced the band gap indicating efficient charge mobility. Furthermore, the impedance analysis has revealed the electrical conduction of the film to be 1.8 × 10−6 Ω−1 m−1. In summary, the dispersion of DES modified AC in the PVA matrix have converted the insulating PVA to a semiconducting polymeric film with reduced band‐gap and increased absorption, which present a propitious avenue for wide array of optoelectronic devices, such as thin film transistors, photovoltaics, LEDs, photodetectors, and many such applications.

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“…In 2010, I. Iviaeva et al [109] studied the optical properties of PVA films with diamond and titania nanoparticles; they found that the refractive index increases as the concentration of titania and diamond inclusions in the PVA matrix are increasing. In 2012, H. Ahmad et al [110] examined the electrical and optical properties of PVA/LiI polymer electrolyte films. They found that dielectric loss and dielectric constant are increased with the rise of LiI concentration.…”

Section: Strontium Titanate (Srtio 3 )mentioning

confidence: 99%

Studies on Characteristics of Polymer/Ceramics Nanocomposites for Biomedical and Industrial Applications

2022

Nanosistemi, Nanomateriali, Nanotehnologii

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The nanocomposites of polymer doped with ceramic nanoparticles have many applications in biomedical and industrial sectors. The nanocomposites consisting of polymers like polyvinyl alcohol and polyacrylic acid with ceramic nanoparticles such as SrTiO 3 ones can be considered as promising materials for different modern fields. The present work includes review of recent publications on polymer/ceramic nanocomposites concerning their characterization and modern applications. From the previous studies, the polymer nanocomposites have huge applications in different fields like sensors, antibacterial agents, solar cells, transistors, etc.Нанокомпозити полімеру, леґованого керамічними наночастинками, мають багато застосувань у біомедичному та промисловому секторах. Нанокомпозити, що складаються з полімерів, таких як полівініловий спирт і поліакрилова кислота з керамічними наночастинками, такими як SrTiO 3 , можна розглядати як перспективні матеріяли для різних сучасних областей. Ця робота включає огляд останніх публікацій з нанокомпозитів полімер-кераміка щодо їхньої характеризації та сучасних застосувань. З попередніх досліджень полімерні нанокомпозити мають величезні застосування в різних областях, таких як давачі, антибактеріальні засоби, сонячні елементи, транзистори тощо.

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Optical properties of PVA films with diamond and titania nanoparticles

Cited by 10 publications

References 11 publications

Optical and Electrical Properties of Polystyrene/Poly‐methyl methacrylate Polymeric Blend Filled with Semiconductor and Insulator Nanofillers

Optical and Electrical Properties of Polystyrene/Poly‐methyl methacrylate Polymeric Blend Filled with Semiconductor and Insulator Nanofillers

Synergistic fabrication, characterization, and prospective optoelectronic applications of DES grafted activated charcoal dispersed PVA films

Studies on Characteristics of Polymer/Ceramics Nanocomposites for Biomedical and Industrial Applications

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