Synthesis and characterization of PEG/CS‐AgNO₃ polymer nanocomposites for flexible optoelectronic and energy storage applications

Polymer Composites, Год журнала: 2024, Номер 45(6), С. 5164 - 5175

Опубликована: Янв. 9, 2024

Abstract The Polyethylene glycol (PEG) and Chitosan (CS)/silver nitrate (AgNO 3 ) thin films were prepared by utilizing the casting technique to enhance their optical, dielectric, electrical properties. Their physicochemical characteristics investigated using a variety of techniques. FT‐IR study demonstrates that addition AgNO NPs results in discernible difference intensities locations vibrational peaks all bands, supporting incorporation inside PEG/CS. XRD analysis indicates peak at 2θ = 23.1° broadens strengthens proportionally with increase NPs. This observation suggests into PEG/CS greater degree amorphous compared blend. Additionally, when amount increases PEG/CS, energy band gap decreases, resulting creation localized states between valence conduction bands. These polymer nanocomposite films' conductivity, dielectric constant, loss increased frequency showed variance for various composite concentrations. NPs/PEG/CS can be promising options frequency‐tunable nanodielectrics, flexible substrates, bandgap‐regulated materials upcoming microelectronic, capacitive storage, optoelectronic technologies, according experimental results. Highlights nanocomposites obtained. optical properties calculated. Optical energy‐gap samples was reduced after adding are improved. suggested used storage devices.

Язык: Английский

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Synthesis and improved optical, electrical, and dielectric properties of PEO/PVA/CuCo2O4 nanocomposites

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Авг. 15, 2024

This study investigates the development of novel nanocomposite films based on a blend polyethylene oxide (PEO) and polyvinyl alcohol (PVA) loaded with varying weight percentages copper cobaltite nanoparticles (CuCo2O4 NPs). The primary objective was to fabricate these nanocomposites using solution casting technique explore influence CuCo2O4 content their structural, optical, electrical, dielectric properties. Spinel-type NPs were synthesized via hydrothermal method incorporated into PEO/PVA blend. X-ray diffraction (XRD) analysis revealed transformation polymer matrix towards an amorphous state increasing content. UV–Vis spectroscopy studies demonstrated decrease in both direct indirect band gaps nanocomposites, suggesting potential applications optoelectronic devices. Impedance measurements significant enhancement ionic conductivity (three orders magnitude higher than pristine blend) for film containing 1.8 wt% CuCo2O4. real permittivity (ε′) imaginary (ε″) exhibited frequency due interplay various polarization mechanisms. Notably, incorporating led remarkable improvement energy density compared Additionally, barrier observed. These findings demonstrate successful fabrication PEO/PVA-CuCo2O4 enhanced observed improvements suggest promising materials storage devices potentially like light-emitting diodes.

Язык: Английский

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Novel chitosan/guar gum/PVA hydrogel: Preparation, characterization and antimicrobial activity evaluation

International Journal of Biological Macromolecules, Год журнала: 2020, Номер 164, С. 499 - 509

Опубликована: Июль 16, 2020

Язык: Английский

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Studies on structural and dielectric behaviour of PVA/PVP/SnO nanocomposites

Composites Communications, Год журнала: 2020, Номер 23, С. 100597 - 100597

Опубликована: Дек. 18, 2020

Язык: Английский

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Synthesis of CoFe2O4/MWCNTs Nanohybrid and its Effect on the Optical, Thermal, and Conductivity of PVA/CMC Composite as an Application in Electrochemical Devices

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2022, Номер 32(5), С. 1935 - 1949

Опубликована: Апрель 9, 2022

Язык: Английский

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Structural, optical, mechanical, and dielectric properties studies of carboxymethyl cellulose/polyacrylamide/lithium titanate nanocomposites films as an application in energy storage devices

Polymer Testing, Год журнала: 2022, Номер 114, С. 107705 - 107705

Опубликована: Июль 14, 2022

Carboxymethyl cellulose/polyacrylamide (CMC/PAM) blend was used as a matrix material for fabricating nanocomposite samples reinforced with the cubic lithium titanate nanoparticles (Li4Ti5O12 NPs, particle size <55 nm) by solution casting method. The structural, optical, thermal, mechanical, and dielectric properties of were investigated. CMC/PAM structure's increased amorphous areas existence hydrogen coordination bonds in both revealed XRD FT-IR spectra. optical measurements indicated absorbance significantly improved energy band gap decreased UV–Visible Due to interactions between polymer fine dispersion inclusion Li4Ti5O12 NPs thermal stability at high temperatures CMC/PAM, according results TGA thermograms. mechanical addition nanofiller. parameters, such permittivity modulus spectra, films also reported, where these parameters can be advantageously tuned content that depicts them attractive biodegradable nano-dielectrics. relaxation process predominant effect interfacial polarization within hybrid are reported. obtained depict multifunctionality tuner, development solid electrolyte, controllable nanodielectrics preparation high-density storing/advanced microelectronic devices.

Язык: Английский

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Performance of Boehmite Nanoparticles Reinforced Carboxymethyl Chitosan/Polyvinyl Alcohol Blend Nanocomposites Tailored Through Green Synthesis

Journal of Polymers and the Environment, Год журнала: 2022, Номер 31(2), С. 447 - 460

Опубликована: Ноя. 1, 2022

Язык: Английский

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A facile microwave-assisted combustion synthesis of NiCoFe2O4 anchored polymer nanocomposites as an efficient electrode material for asymmetric supercapacitor application

Journal of Energy Storage, Год журнала: 2022, Номер 48, С. 103965 - 103965

Опубликована: Янв. 16, 2022

Язык: Английский

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Effect of Doping Sb₂O₃NPs on Morphological, Mechanical, and Dielectric Properties of PVA/PVP Blend Film for Electromechanical Applications

NANO, Год журнала: 2023, Номер 18(03)

Опубликована: Янв. 12, 2023

In this work, antimony trioxide nanoparticles (Sb 2 O 3 NPs)-doped polyvinyl alcohol (PVA[Formula: see text]) and pyrrolidone (PVP[Formula: (i.e., PVAP@[Formula: text]Sb NPs, [Formula: text], 0.04) composite films were prepared using the casting method. Light optical microscopy (LOM), scanning electron (SEM), Fourier infrared spectrums (FTIR) used to investigate NPs films. Sb well dispersed within matrix. FTIR showed a strong interaction between matrix material NPs. The density increased by up 75% after adding 0.04[Formula: text]wt.% of mechanical ultrasound properties (MUS) measured with different frequencies in ranges (25, 30, 35, 40 45[Formula: text]kHz). MUS coefficients such as ultrasonic velocity, absorption coefficient, bulk modules significantly improved impact 20%, 115% 230%, respectively. reduction electrical dielectric loss constant was associated an increase frequency. PVAP@Sb about 80% loading. AC conductivity revealed improvement frequency loading ratio. results demonstrate promising for electromechanical, energy harvesting, pressure sensor applications.

Язык: Английский

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Structural, optical, dielectric and electrical properties of flexible nanocomposite based on NaAlg/PEO composite and AgNO3 NPs for energy storage applications and optoelectronic devices

Optical Materials, Год журнала: 2024, Номер 152, С. 115515 - 115515

Опубликована: Май 14, 2024

Язык: Английский

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