Investigation of optical and electrical properties of copper oxide - polyvinyl alcohol nanocomposites for solar cell applications

Al-Fa'ouri, Ahed M.; Lafi, Omar A.; Abu-Safe, Husam H.; Abu-Kharma, M.

doi:10.1016/j.arabjc.2022.104535

Cited by 11 publications

(9 citation statements)

References 23 publications

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“…These changes in the shape, size, or morphology of nanoparticles may also contribute to the alteration of optical properties of the nanocomposite films. To get more insight into the observed optical properties, we calculated the optical energy gap E g of PVA and CuO-PVA films using the following Tauc equation [4,39]…”

Section: Sem Analysismentioning

confidence: 99%

“…[2] Metal oxides in bulk forms lack many physical and chemical properties, compared to their nanostructures which offer many advantages including high surface area and chemical reactivity, novel optical and electrical properties. [3][4][5][6] Various metal oxides such as ZnO, NiO, CuO, Co 3 O 4 , Fe 3 O 4 , CeO 2 , TiO 2 , etc. in their nanoforms have been synthesized and applied in various applications such as catalysis, sensors, biosensors, and biomedical engineering fields.…”

mentioning

confidence: 99%

“…[1,7,8] Among them, copper oxide (CuO) nanoparticles are more attractive due to their nontoxicity and fascinating tunable electrical and optical properties. [4] They also possess excellent antiviral and antibacterial properties. [9] Interestingly, CuO nanoparticles can kill the COVID-19 virus [10] and can be embedded into a respiratory mask to improve its function against antiviral infection.…”

mentioning

confidence: 99%

“…[11,12] In this phase, it has outstanding photochemical and photoconductive properties, which have promising applications in solar cells and photodetectors. [4,[13][14][15][16] The physical and chemical behaviors of CuO are sensitive to the structure of the nanomaterial and the composition of the material. As such, photoluminescence and other properties of CuO can be tuned by reducing its size to nanoscales.…”

mentioning

confidence: 99%

“…Further, we also notice that CuO doping in PVA modulates the optical properties significantly, showing the increase of absorbance with an increase of CuO concentration in PVA and changes in absorption edges. Changes in absorption edges indicate a reduction in the bandgap.To get more insight into the observed optical properties, we calculated the optical energy gap E g of PVA and CuO-PVA films using the following Tauc equation[4,39]…”

mentioning

confidence: 99%

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Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films

Singh¹,

Patidar

Singh

et al. 2023

Physica Status Solidi (a)

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This article reports a simple thermal annealing‐assisted direct synthesis method to prepare copper oxide (CuO) nanoparticles incorporated in polyvinyl alcohol (PVA) films and a systematic study of their optical properties. CuO‐PVA nanocomposite films are prepared with a different weight percentage of CuO in the PVA matrix. Scanning electron microscopy (SEM), X‐ray diffraction (XRD), UV‐visible spectroscopy, and photoluminescence spectroscopy are employed to study the prepared films. XRD confirms the formation of crystalline CuO nanoparticles in PVA, while the SEM analysis shows uniformly distributed spherical nanoparticles in PVA. The findings show that thermal annealing at a mild temperature plays a crucial role in improving the crystallinity and optical properties of the nanocomposite film. In comparison to PVA, CuO‐PVA nanocomposite exhibits improved absorption with a new absorption band in the lower wavelength region. The nanocomposite samples excited with 300 nm show intense photoluminescence (PL) at 365 nm and an increase of PL intensity with CuO concentration in the PVA matrix. In contrast, samples excited with 425 nm show green emission at 550 nm in the visible region of the electromagnetic spectrum. The PL in CuO‐PVA nanocomposites can be originated due to the transitions associated with acceptor and donor defects in the material. The study opens up a new route to fabricate CuO‐PVA nanocomposites with superior optical properties.

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Section: Sem Analysismentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films

Singh¹,

Patidar

Singh

et al. 2023

Physica Status Solidi (a)

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The Rectangular Niobium Oxyiodide Cluster Nb₄OI₁₀ – A Narrow Band‐Gap Semiconductor

Beitlberger,

Ströbele,

Strauß

et al. 2024

Eur J Inorg Chem

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A metal‐rich niobium oxyiodide was prepared by soft reduction of NbI4. The structure of the new compound Nb4OI10 was determined by single‐crystal X‐ray diffraction and contains a rectangular Nb4(μ4‐O) cluster that is interconnected into layers by iodide ligands. The local structure of the Nb4OI10 cluster bears a close relationship to a defect Nb6I11 structure. The two‐dimensional van der Waals material Nb4OI8I4/2] is a small band‐gap semiconductor (<1 eV), as analysed by electrical conductivity measurements, photoresponse, experimental band gap determination, and band structure calculation.

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Comparative analysis of the structural, optical, mechanical, and electrical properties of PMMA/PU blend‐based nanocomposites with FeVO₄ nanofiller for energy storage devices

Alghamdi,

Rajeh

2023

Polymers for Advanced Techs

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The best materials for enhanced energy storage capacitors in electrical systems are polymer nanocomposites films. Therefore, using the solution casting approach, we created a unique series of FeVO4 nanofiller‐embedded polyurethane (PU) and polymethyl methacrylate (PMMA)‐based composites. Various techniques were used to describe the prepared films. XRD spectra were used to assess the crystallinity and crystallite size of nanocomposites. The XRD spectra were used to assess the crystallinity and crystallite size of nanocomposites. With rising nanoparticles (NPs) content up to samples with 1.5 weight percent of FeVO4, XRD demonstrated an increase in the amorphous phase of the polymer mixture, which was further supported by UV–Vis measurements. FTIR was used for determining the complexation of the FeVO4 with the polymer mixture. Calculations were used to determine optical properties such as the Urbach energy and energy bandgap. With a rise in FeVO4 NP concentration, the energy bandgap decreases while the Urbach energy increases. All samples' AC conductivity spectra exhibit Jonscher's power law (JPL) behavior. Studies on dielectric permittivity and electric modulus have also been conducted in order to comprehend the charge storage characteristics and conductivity relaxation. Whereas the frequency‐dependent increase in AC electrical conductivity, the ε′ and ε″ of PU/PMMA–FeVO4 nanocomposites drop with the rising of the electric field frequency. The high level of FeVO4 was shown to improve the AC conductivity, ε′ and ε″ values of the nanocomposites. Tensile strength was improved by 38% with the addition of FeVO4 NPs into the PU/PMMA blend. Experimental outcomes show that these polymer nanocomposites materials are multifunctional and can be used as low‐permittivity nanodielectric insulators and substrates to design the next generation of flexible electronic devices and also there can be used to create a variety of advanced optoelectronic and organic electronic devices.

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Investigation of optical and electrical properties of copper oxide - polyvinyl alcohol nanocomposites for solar cell applications

Cited by 11 publications

References 23 publications

Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films

Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films

The Rectangular Niobium Oxyiodide Cluster Nb₄OI₁₀ – A Narrow Band‐Gap Semiconductor

Comparative analysis of the structural, optical, mechanical, and electrical properties of PMMA/PU blend‐based nanocomposites with FeVO₄ nanofiller for energy storage devices

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Investigation of optical and electrical properties of copper oxide - polyvinyl alcohol nanocomposites for solar cell applications

Cited by 11 publications

References 23 publications

Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films

Simple Thermal Annealing‐Assisted Direct Synthesis and Optical Property Study of CuO Nanoparticles Incorporated Polyvinyl Alcohol Films

The Rectangular Niobium Oxyiodide Cluster Nb4OI10 – A Narrow Band‐Gap Semiconductor

Comparative analysis of the structural, optical, mechanical, and electrical properties of PMMA/PU blend‐based nanocomposites with FeVO4 nanofiller for energy storage devices

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The Rectangular Niobium Oxyiodide Cluster Nb₄OI₁₀ – A Narrow Band‐Gap Semiconductor

Comparative analysis of the structural, optical, mechanical, and electrical properties of PMMA/PU blend‐based nanocomposites with FeVO₄ nanofiller for energy storage devices