Study of optical properties of (PMMA) doped by methyl red and methyl blue films

Khodair, Ziad T.; Saeed, Mustafa H.; Abdul-Allah, Muhammad Hameed

doi:10.30723/ijp.v12i24.320

Cited by 2 publications

(4 citation statements)

References 11 publications

(11 reference statements)

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“…The value of n for a blend with R6G/TiO2 increased. This rise in value is attributed to the R6G/TiO2 acting at a local level in a similar way to the levels of impurities that lead to a rise in the Fermi level [25]. The real dielectric constant part εr and the imaginary dielectric constant part εi are shown in Figures 7 and 8.…”

Section: Fig 3 -The Absorption Coefficient Spectra Of the Samples With Various Concentrations Of Psmentioning

confidence: 87%

“…In the real and imaginary parts of the dielectric constant for the dye/TiO2-doped blend, the real part is associated with how much it slows down the speed of light in the material, and the imaginary part is associated with how a dielectric absorbs energy from the electric field due to dipole motion. The values of εr and εi significantly increased for the PNCs in comparison with the blend, which is attributed to the dye, and TiO2 NP caused an increase in the free charge carriers in the blend [25]. The various optical properties obtained for the composite materials for different cases are listed in Table 2.…”

Section: Fig 3 -The Absorption Coefficient Spectra Of the Samples With Various Concentrations Of Psmentioning

confidence: 99%

“…The real dielectric constant part εr and the imaginary dielectric constant part εi are shown in Figures 7 and 8. As they relate to the n and k values, the εr and εi values were calculated [25]: (3)…”

Section: Fig 3 -The Absorption Coefficient Spectra Of the Samples With Various Concentrations Of Psmentioning

confidence: 99%

See 2 more Smart Citations

Impact of PS/PMMA Polymer Ratios with Nanocomposite Material on Optical and Morphological Properties

Haider

Al-Shibaany

Hawy

et al. 2020

ZJMT

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In this work, nanocomposite material consisting of titanium dioxide (TiO2) nanoparticles and rhodamine 6G (R6G) laser dye was doped with different ratios of polystyrene (PS) and polymethylmethacrylate (PMMA) polymer blends (i.e. 40% PS/60% PMMA and 50% PS/50% PMMA) using the casting method. The optical properties of the prepared samples were measured using UV-visible spectroscopy. These measurements include the calculations of the absorption (A%), absorption coefficient (α), energy gap (Eg), refractive index (n), extinction coefficient (K) and real and imaginary parts. These nanocomposite materials were investigated using a scanning electron microscope and photoluminescence (PL) spectra emission. The SEM results show that the optimum results were at 50% PS/50% PMMA/TiO2/R6G with all the dye being decorated in the process blend, while the TiO2 nanoparticle demonstrated that the pores were incomplete in some places and complete in others. The optical results show that there are red shifts in all absorption peaks caused by the increased PS ratio. The Eg decreased from 3.2 eV to 2.8 eV as the concentration of PS in the polymer matrix increased. The PL spectrum for the nanocomposites, with a different ratio of PS, shows that sharp peaks of PL emission occur at a wavelength of 570 nm and shift towards longer wavelengths with an increased PS%.

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Section: Fig 3 -The Absorption Coefficient Spectra Of the Samples With Various Concentrations Of Psmentioning

confidence: 87%

Section: Fig 3 -The Absorption Coefficient Spectra Of the Samples With Various Concentrations Of Psmentioning

confidence: 99%

See 1 more Smart Citation

Impact of PS/PMMA Polymer Ratios with Nanocomposite Material on Optical and Morphological Properties

Haider

Al-Shibaany

Hawy

et al. 2020

ZJMT

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“…The polymer PMMA weight (0.5) g was chosen. To make polymer film, the casting method was adopted [7]. The liquid will be shaken vigorously before being put onto a 10cm diameter glass Petri dish and allowed for 24 h at room temperature (25-30) o C to obtain homogenous films.…”

Section: Preparation Poly(methylmethacrylate) Pmma Filmsmentioning

confidence: 99%

Study Effect Alpha Irradiation with Annealing on Chemical - Optical Properties of Poly (methyl methacrylate) Films

Alrakabi,

Rasheed,

Al-Sahlanee

et al. 2024

Mater. Plast.

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Polymers are commonly utilized sophisticated materials that may be found in nearly every item we use daily. Polymers relevance has recently been highlighted due to their applications in several fields of science, technology, and industry, ranging from fundamental usage to biopolymers and medicinal polymers. The research aims to study the effect of annealing with irradiation on the optical properties of PMMA films used in many industrial and medical applications. Where UV-Vis spectroscopy was used to study the absorption and emission spectra in calculating the optical parameters, it was found that the optical energy gap of the indirect transmission type decreases with the increase in the thickness of the thin films. Also, the optical parameters such as the absorption coefficient, refractive index, attenuation coefficient, and dielectric constants increase with increasing thickness. The character of FTIR spectra and the locations of the bands have been demonstrated to change with different time annealing temperatures with irradiation. Irradiation has been demonstrated to change the shape of FTIR Spectra and the placement of the peaks.

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Study of optical properties of (PMMA) doped by methyl red and methyl blue films

Cited by 2 publications

References 11 publications

Impact of PS/PMMA Polymer Ratios with Nanocomposite Material on Optical and Morphological Properties

Impact of PS/PMMA Polymer Ratios with Nanocomposite Material on Optical and Morphological Properties

Study Effect Alpha Irradiation with Annealing on Chemical - Optical Properties of Poly (methyl methacrylate) Films

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