Enhancing Optical Properties of Modified PVC and Cr2O3 Nanocomposite

Abed, Rasheed N.; Kadhom, Mohammed; Ahmed, Dina S.; Hadawey, Abas; Yousif, Emad

doi:10.1007/s42341-020-00242-8

Cited by 19 publications

(6 citation statements)

References 28 publications

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“…Figure 8 shows the index of refraction (n) and extinction-coefficient (k) versus the wavelength of the incident light. These two parameters are calculated theoretically, depending on the UV-visible data obtained experimentally, using the following equations [6,46],…”

Section: Optical Propertiesmentioning

confidence: 99%

Effect of CdSSe nanoparticles on the structural, surface roughness, linear, and nonlinear optical parameters of polyvinyl chloride films for optoelectronic applications

Soliman

2023

Phys. Scr.

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Polyvinyl chloride (PVC) was used as a host matrix for different CdSSe nanoparticles (NPs) concentrations. PVC-CdSSe films were prepared by the solution-cast method, and CdSSe NPs were prepared by the hot-injection method. A scanning electron microscope attached to an EDX unit was used to identify CdSSe elements. The reinforcement of CdSSe NPs in the PVC matrix exhibits growth in CdSSe particle size due to agglomerations. PVC-CdSSe films were examined via XRD, FT-IR, and a polarized optical microscope. The roughness tester was used to measure the surface roughness parameters of the PVC-CdSSe films, which revealed the growth in film roughness with increasing the CdSSe concentration. The UV-visible spectrophotometer was used to analyze the PVC-CdSSe film's transmission and absorption. Tauc’s model was used to evaluate the optical bandgap (Eg). The Eg was lessened from 5.45 eV for pure PVA to 4.78 eV for PVC-3%CdSSe film, while the Urbach energy was increased upon CdSSe NPs additive to the PVC matrix testifying to the formation of the localized states with high-density. Furthermore, an improvement in nonlinear optical parameters (estimated via the Wemple-DiDomenico model) was observed. The third-order nonlinear optical susceptibility ( χ(3)) enhanced from 4.08×10-15 for pure PVC to 1.91×10-13 for PVC-3wt.%CdSSe, due to the surface plasmon oscillation of CdSSe NPs in the PVC matrix. In view of the improved optical parameters, the as-prepared PVC-CdSSe films make them a possible nominee for nonlinear optical devices.

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Section: Optical Propertiesmentioning

confidence: 99%

Effect of CdSSe nanoparticles on the structural, surface roughness, linear, and nonlinear optical parameters of polyvinyl chloride films for optoelectronic applications

Soliman

2023

Phys. Scr.

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“…For the AFM test, the samples were set in nitrogen to prevent deformation; a tapping mode was used to obtain 3D images at a scanning rate of 0.8 Hz. As this work is one of a series of studies in our group, the detailed examination procedures are illustrated elsewhere [20][21][22].…”

Section: Materials and Apparatusesmentioning

confidence: 99%

“…In our group, PVC films were modified by Cr 2 O 3 NPs to enhance the optical properties of the polymer. The modified polymers had a smaller energy gap and became more conductive; as a result, the modified polymers had a higher photostability [20]. In addition, the PVC was modified by Tin(IV) complexes to delay the photodecomposition rate and improve the surface properties.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Metal Oxides Nanoparticles in Modulating Polyvinyl Chloride Films to Resist Ultraviolet Light

Mujbil

Jebur

Yousif

et al. 2022

Metals

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Modified poly(vinyl chloride) (PVC) films with organic groups (amino group from ethylene di-amine (en) and a suitable aromatic aldehyde from benzaldehyde (BEN)) were synthesized by casting using tetrahydrofuran (THF) solvent. The films were doped with four metal oxides nanoparticles (NPs), namely: CuO, Cr2O3, TiO2, and Co2O3, to improve the anti-photodegradation property. The films were irradiated with ultraviolet light and the resulting damage was assessed using different analytical and morphological techniques. These techniques included FTIR, 1H-NMR, and 13C-NMR spectroscopies that were used to examine the chemical structure, while another set of devices, namely optical microscope, scanning electronic microscopy (SEM), and atomic force microscope (AFM) were used to examine the morphology. In order to confirm that modified PVC acts as PVC photostabilizers, the roughness factor (Rq) was measured for the irradiated PVC films. The average Rq for irradiated blank PVC, modified PVC, modified PVC/CuO NPs, modified PVC/TiO2 NPs, modified PVC/Co2O3 NPs, and modified PVC/Cr2O3 NPs films were 368.3, 76.1, 62.6, 53.2, 45.8, and 33.8, respectively. Infrared spectroscopy and weight loss determination indicated that the films incorporated with additives showed less damage and fewer surface changes compared to the blank film. All mentioned additives acted as UV screeners against the UV light. The modified PVC/Cr2O3 NPs film showed the highest ability to resist the photo-degradation process based on the results data of FTIR spectra, weight loss, and surface morphology. In addition, after 300 h of irradiation, the weight percentage of modified PVC/Cr2O3 NPs film was 0.911 in contrast to the blank PVC, 2.896. Among the tested films, modified PVC/Cr2O3 NPs film showed the best results.

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“…The ZnO-Fe 2 O 3 composite material has aroused much interest, due to its wide variety of applications; among which we can highlight gas sensors [2], reduction of mercury ions [3], lactate sensor [4], solar oxidation of water [5] and photocatalysis [6]. Various methods have been used to obtain ZnO-Fe 2 O 3 composite material such as co-precipitation [7], sol gel [3], hydrothermal [8], and spray pyrolysis [9].…”

Section: Introductionmentioning

confidence: 99%

Optical and structural properties of Fe2O3-ZnO composite thick films obtained by ultrasonic spray pyrolysis

Torres Frausto,

Zapata Torres,

Monsibais Silva

et al. 2023

Superficies y Vacio

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Fe2O3-ZnO composite gained attention due the several applications like that sensors, photocatalysis, reduction of mercury ions. Fe2O3-ZnO composite thick films were prepared by Ultrasonic Spray Pyrolysis on a glass substrate, using 0.1 M aqueous solutions of FeCl3?6H2O and ZnCl2 anhydride. To obtain different elemental concentration of Fe and Zn, we varied the volume of each aqueous solution. The XPS analysis shown that it is possible to modulate the concentration of Zn and Fe in the samples. The X-ray diffraction measurements revealed that the films were composed of different phases corresponding with common stable iron oxides (ZnFe2O4, Fe2O3) and zinc oxide (ZnO). Results from Raman spectroscopy indicate that Fe2O3 vibrational modes are accompanied with new modes due to the presence of additional phases ZnO compounds. The band gaps were evaluated with the help of UV-visible transmittance data using the Tauc model, the results shown a modulation of the band gap values (2.2 eV to 3.2 eV). Theorical transmittance curves were obtained using the effective medium theory, using the Bruggeman model, these curves showed similar behavior that the experimental transmittance curves.

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Enhancing Optical Properties of Modified PVC and Cr2O3 Nanocomposite

Cited by 19 publications

References 28 publications

Effect of CdSSe nanoparticles on the structural, surface roughness, linear, and nonlinear optical parameters of polyvinyl chloride films for optoelectronic applications

Effect of CdSSe nanoparticles on the structural, surface roughness, linear, and nonlinear optical parameters of polyvinyl chloride films for optoelectronic applications

Utilization of Metal Oxides Nanoparticles in Modulating Polyvinyl Chloride Films to Resist Ultraviolet Light

Optical and structural properties of Fe2O3-ZnO composite thick films obtained by ultrasonic spray pyrolysis

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