Laser Induced Modification of the Optical Properties of Nano-ZnO Doped PVC Films

Hamad, Tagreed K.; Yusop, Muhammad Rahimi; Al-Taa’y, Wasan A.; Abdullah, Bashar Mudhaffar; Yousif, Emad

doi:10.1155/2014/787595

Cited by 22 publications

(5 citation statements)

References 16 publications

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“…Thus, it is important to determine optical constants of the films. The refractive index of the films was determined from the following relation [18]:…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Nickel Chloride Doped PMMA Films

Al-Taa’y

Oboudi

Yousif

et al. 2015

Advances in Materials Science and Engineering

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Films of PMMA and PMMA doped with NiCl 2 with different contents were prepared using the casting technique. The optical properties of all films were investigated using spectrophotometric measurements of absorbance and transmittance in the wavelength range 200-800 nm. The change of the calculated values of the optical energy gaps with increasing NiCl 2 content has been interpreted in terms of the structural modifications of the PMMA matrix. The optical energy gap decreased from 3.6 to 3.05 eV with increasing the NiCl 2 concentration to 0.4%. The effect of doping on the optical constants of films such as refractive index, extinction coefficient, real and imaginary parts of dielectric constant, optical conductivity, and skin depth has been reported. All these constants were increased with increasing NiCl 2 concentration with the exception of skin depth which is different result.

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“…Thus, it is important to determine optical constants of the films. The refractive index of the films was determined from the following relation [18]:…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Nickel Chloride Doped PMMA Films

Al-Taa’y

Oboudi

Yousif

et al. 2015

Advances in Materials Science and Engineering

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“…The absorption coefficient of (PMMA-ZrO 2 -Ag) nanocomposites is less than 10 4 cm 1 ; this clarifies that the electron transition is indirect [101].…”

Section: Resultsmentioning

confidence: 70%

Structural and Optical Properties of (PMMA/ZrO/Ag) New Nanocomposites for Optoelectronics and UV Detectors Applications

2020

Nanosist. Nanomater. Nanotehnol.

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“…1a shows the absorption curves as a function of wavelength in prepared chitosan solution samples. Through our observation of the Figure , it was found that the behavior of the curves is the same for all models before and after irradiation, where a sudden increase was noted in the absorption values in wavelength range (250-400) nm and this might be due to a decrease in the absorption of the incident beam [11]. Then the curve begins to nearly stabilize after wavelengths higher than (400) nm.…”

Section: Absorbancementioning

confidence: 69%

Effect of Gamma and CO2 Laser Radiations on the Optical Properties of Pure Chitosan

Saleh

Aesa

Taqi

2022

Arab Journal of Nuclear Sciences and Applications

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In this work, the effect of gamma and CO2 laser radiations on the optical properties of 2% (wt/v) concentration of pure chitosan has been investigated. The optical properties (absorption, transmission, molar absorption coefficient and refractive index) of all prepared samples of chitosan solution, before and after gamma and CO2 laser irradiated, were studied in the wavelength range (200-1100) nm for a gamma dose rate of 0.1 mR h -1 , and CO2 laser power of 5W. The time of irradiation was five and ten days for gamma ray and 5s and 10s for laser. It has been found that there is an increase in the absorption of all samples irradiated with both types of radiation gamma and CO2 laser. The transmission of all samples was decreased. The refractive index of all samples was decreased in the wavelength range (200-400) nm and then increased in the wavelength range (400-1100) nm for both types of radiations. It has also been found that the values of molar absorption coefficient for all irradiated samples were increased.

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Laser Induced Modification of the Optical Properties of Nano-ZnO Doped PVC Films

Cited by 22 publications

References 16 publications

Fabrication and Characterization of Nickel Chloride Doped PMMA Films

Fabrication and Characterization of Nickel Chloride Doped PMMA Films

Structural and Optical Properties of (PMMA/ZrO/Ag) New Nanocomposites for Optoelectronics and UV Detectors Applications

Effect of Gamma and CO2 Laser Radiations on the Optical Properties of Pure Chitosan

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