Evaluation of structural and optical properties of Ce 3+ ions doped (PVA/PVP) composite films for new organic semiconductors

Ali, F. M.; Kershi, R.M.; Sayed, M. A.; AbouDeif, Y. M.

doi:10.1016/j.physb.2018.03.031

Cited by 102 publications

(61 citation statements)

References 33 publications

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“…FT-IR spectrophotometry measurements are considered as an essential method to investigate the bonds' stretching and vibrations or other structure changes that occur due to the filling process of ternary Zn 1-x Sn x S in the host PVP polymer [29]. The variations in the FT-IR measurements ensure the interactions between the filler and the functional groups of the host PVP polymer [30,31]. The FT-IR spectra in the transmittance mode of the plain PVP and the Zn 1-x Sn x S (x: 0, 0.05, 0.10, 0.15, 0.20 and 0.30) polymeric composite films are presented in Fig.…”

Section: Ft-ir Analysismentioning

confidence: 99%

“…Additionally, it is worth noting that the single oscillator model of Wemple and DiDomenico (WDD) could effectively be used to study the dispersion of the polymeric composite films [31]. This analysis is essential to investigate the suitability of the prepared composite films for such 6.0x10 -4 9.0x10 -4…”

Section: Wherementioning

confidence: 99%

“…of the plain and polymeric composite films versus the incident photons energy optical applications. In addition, WDD model is limited to be applied below the edge of the interband absorption region [6,31]. It combines the refractive index (n) and the photons energy (hν) as [6,54]:…”

Section: Wherementioning

confidence: 99%

See 2 more Smart Citations

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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Section: Ft-ir Analysismentioning

confidence: 99%

Section: Wherementioning

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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“…Besides, rare earth elements also have the characteristics of low toxicity, weak accumulation, no teratogenic changes, and no smell [16]. The related reports studied the preparation of complexes with gelatin and rare earth cerium, confirming that the antibacterial properties of gelatin solution were improved by using cerium, and the gelatin cerium complex had good antibacterial properties [17,18]. However, the CG compounded with rare earth, which can improve the antibacterial property, is rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Improving Antimicrobial Activity of Carbon/Gelatin Composite by Ce(III)

Guo

Ning

et al. 2019

International Journal of Polymer Science

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Carbon/gelatin/Ce (CGCe) composite was prepared with high antimicrobial activity. And the structure, thermal property, and antimicrobial activity of the composite were investigated. The research results showed that CGCe has a higher thermal property and antimicrobial activity against S. aureus and E. coli compared with CG. The influences of molecular weight of gelatin, pH, and concentration of Ce (III) on the antimicrobial activity were discussed, and the IC50, MIC, and MBC against S. aureus of CGCe are 185 μm·mL-1, 525 μm·mLl-1, and 700 μm·mL-1, respectively, and the IC50, MIC, and MBC against E. coli of CGCe are 255 μm·mL-1, 700 μm·mL-1, and 1050 μm·mL-1, respectively.

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“…12, we can deduce the values of the parameters Eo and Ed through the intercept of y-axe and the slope of the linear fit part, respectively. Additionally, the static refractive index values (no) of the pristine MC, MC/PANI, and MC/PANI/Ag films can be computed via extrapolating upright portion of each curve with ordinate (ℎ ) 2 = 0 as [42]:…”

mentioning

confidence: 99%

Flexible Methyl Cellulose/Polyaniline/Silver composite films with Enhanced Linear and Nonlinear Optical Properties

Atta

Hamied

Abdelreheem

et al. 2021

Preprint

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In order to potentiate implementations in optical energy applications, flexible polymer composite films comprising methyl cellulose (MC), polyaniline (PANI) and silver nanoparticles (AgNPs) were successfully fabricated through a solution cast preparation method. The composite structure of the fabricated film was confirmed by X-ray diffraction and infrared spectroscopy, indicating a successful incorporation of AgNPs into the MC/PANI blend. The optical parameters such as band gap (Eg), absorption edge (Ed), number of carbon cluster (N) and Urbach energy (Eu) of pure MC polymer, MC/PANI blend and MC/PANI/Ag film were determined by using the UV optical absorbance in the wavelength range 200 to 110 nm. The influence of AgNPs and PANI on linear optical (LO) and nonlinear optical (NLO )parameters such as reflection extinction coefficient, refractive index, dielectric constant, nonlinear refractive index and nonlinear susceptibility of MC polymer were also investigated. The results showed a decrease in the band gap of MC/PANI/AgNPs compared to the pure MC film. Meanwhile, the estimated carbon cluster number enhanced with the incorporation of the AgNPs. The addition of AgNPs and PANI also improved the optical parameters of MC polymer, a trait that makes the current composite a convenient material for optical energy applications.

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Evaluation of structural and optical properties of Ce 3+ ions doped (PVA/PVP) composite films for new organic semiconductors

Cited by 102 publications

References 33 publications

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

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

Improving Antimicrobial Activity of Carbon/Gelatin Composite by Ce(III)

Flexible Methyl Cellulose/Polyaniline/Silver composite films with Enhanced Linear and Nonlinear Optical Properties

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