Spectroscopic and Electrical Properties of Ag2S/PVA Nanocomposite Films for Visible-Light Optoelectronic Devices

Alharthi, Sami S.; Alzahrani, Ahmed Obaid M.; Razvi, M. A. N.; Badawi, Ali; Althobaiti, M. G.

doi:10.1007/s10904-020-01519-4

Cited by 43 publications

(23 citation statements)

References 45 publications

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“…These applications include optoelectronics, solar cells, LEDs, electrolytes, superconductors, and others. [ 7,10–16 ] Among these polymers, polyvinyl alcohol (PVA) is preferable since it has many novel characteristics over others. Some of its features: biocompatibility, water‐solubility, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

Badawi

Alharthi

Althobaiti

et al. 2021

Vinyl Additive Technology

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The effect of iron oxide nanoparticles (Fe2O3 NPs) content on the structural and optical parameters of polyvinyl alcohol/graphene (PVA/G) blend has been investigated. Fe2O3 NPs were synthesized by the hydrothermal procedure. Nanocomposite (NC) films of PVA/G filled with different amounts of Fe2O3 NPs were equipped using the solution casting technique. The surface morphology, structural, and optical properties were examined by scanning electron microscope (SEM), X‐ray diffraction (XRD), and ultraviolet‐visible‐near‐IR (UV‐Vis‐NIR) spectrophotometry techniques, respectively. SEM micrographs reveal the homogenous distribution of Fe2O3 NPs in the PVA/G matrix. The XRD analysis exhibits the formulation of the hematite phase of Fe2O3 NPs and the semi‐crystalline nature of PVA/G NC films. The UV‐Vis‐NIR data analysis shows that the optical properties of the PVA/G blend could be tailored via Fe2O3 NPs filling. Wemple–DiDomenico model is utilized to explore the dispersion parameters of the prepared NCs. A significant effect of Fe2O3 NPs filling is realized on the oscillator and dispersion energies, infinite refractive index, dielectric constant, average oscillator strength and the lattice dielectric constant of the NC films. PVA/G filled Fe2O3 NPs are suggested for different optical and storage applications.

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Section: Introductionmentioning

confidence: 99%

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

Badawi

Alharthi

Althobaiti

et al. 2021

Vinyl Additive Technology

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“…These features involve the structural, optical, electrical and mechanical properties. The superiority of polymer composites over traditional organic and inorganic materials qualifies them to be active candidates in various applications [1][2][3][4]. Some of these applications are included in communications, industry, medicine and electronics.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, the optical properties of PVA/PVP blend polymers have been engineered using SnS for optoelectronic applications [6]. Alharthi et al [3] explored the electrical and photoluminescence behaviors of Ag 2 S/PVA for visible-light optoelectronics. Also, Fe 2 O 3 nanoparticles, carbon quantum dots and other dopants were used to enhance the physical properties of host polymers for multi applications [1,[7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…While the majority of the explored ones focused on inorganic materials whether they are metals or semiconductors. Some of these: Ag [19], Sn [20], CdS [21], Ag 2 S [3], SnS [6], CdSe [22], ZnS [23], Co x Fe 3−x O 4 [24], CNTs [9] and others [24,25]. The majority of these previous studies are based on controlling the concentration of the filler (weight ratio percentage: wt.%) to the host polymer.…”

Section: Introductionmentioning

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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“…During the past years, metal sulfide Ag2S has attracted much attention due to its excellent physical and chemical properties that enable it with various applications in fields of catalysis, sensing, optoelectronics and so on [1][2][3][4][5][6] . For example, Dong, et al [7] reports Ag2S-nanowire is an ideal candidate for making nano temperature and photoelectric sensors as its photoconductivity is always positive under 532 nm or 1064 nm laser radiation.…”

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Metal Sulfide Ag₂S: Fabrication via Zone Melting Method and Its Thermoelectric Property

Jin¹,

Xudong²,

Zhang³

et al. 2022

Journal of Inorganic Materials

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Metal sulfide Ag2S is an attractive semiconductor due to its excellent physical and chemical property that enable it with wide applications in fields of catalysis, sensing, optoelectronics in past years. In present work, Ø18 mm× 50 mm Ag2S ingot was successfully prepared using zone melting method and its potential thermoelectric (TE) behavior was investigated. Ag2S has standard monoclinic P21/c space group (α-Ag2S phase) below 450 K and will transfer to cubic structure (β-Ag2S phase) over this temperature. Ag2S is a n-type semiconductor as the Seebeck coefficient S is always negative due to the Ag interstitial ions in the material that can provide additional electrons.The S value is about -1200 µV• K -1 near room temperature and will decline to -680 µV • K -1 at 440 K and finally decreases to ~-100 µV • K -1 at β-Ag2S state. The electrical conductivity σ of α-Ag2S is almost zero. However, the value sharply jumps to ~40000.5 S• m -1 as the material just changes to β-Ag2S and then gradually deceases to 33256.2 S• m -1 at 650 K. Hall measurement demonstrates the carrier concentration nH of Ag2S is suddenly increased from the level of ~10 17 cm -3 to ~10 18 cm -3 during phase transition. The total thermal conductivity κ of α-Ag2S is ~0.20 W• m -1 • K -1 and the value is ~0.45 W• m -1 • K -1 to β-Ag2S. Ultimately, a maximum ZT= 0.57 is achieved around 580 K that means Ag2S might be a promising middle-temperature TE material.

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Spectroscopic and Electrical Properties of Ag2S/PVA Nanocomposite Films for Visible-Light Optoelectronic Devices

Cited by 43 publications

References 45 publications

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

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

Metal Sulfide Ag₂S: Fabrication via Zone Melting Method and Its Thermoelectric Property

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Spectroscopic and Electrical Properties of Ag2S/PVA Nanocomposite Films for Visible-Light Optoelectronic Devices

Cited by 43 publications

References 45 publications

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

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

Metal Sulfide Ag2S: Fabrication via Zone Melting Method and Its Thermoelectric Property

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Product

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Metal Sulfide Ag₂S: Fabrication via Zone Melting Method and Its Thermoelectric Property