ISSN: 1813-0410

Keywords : Optical Properties

The impact temperature of substrate on the basic and optical properties of CuO slender movies acquired by shower pyrolysis technique

Mohammed. A. Al-Hur.Kahdim; Ahmed. Jumah Mhawes

journal of kerbala university, Volume 12, Issue 0, Pages 140-146

In this research the structural and optical Properties of copper oxides, Cu2O and CuO semiconductor films had been concentrated on, which arranged with 300 nm thickness by spray pyrolysis method at 200, 250 and 300oC substrate temperatures on glass substrates from 0.2M (CuCl2•2H2O) broke down in refined water. The phase existed were studied by the X-ray diffraction analysis and their effect on the optical properties.

Dopping Effect on Some Optical Properties of Poly methyl meth acrylate ( PMMA)

journal of kerbala university, Volume 12, Issue 0, Pages 147-158

In this study we calculated some of the optical properties for (PMMA-CU) Nanoparticles film prepared in room temperature on glass substrate by using Casting Method .The optical properties included transmittance ,absorption coefficient ,reflectance ,refractive index and extinction coefficient .This results appeared that most properties are increasing Linearly with increasing the concentration.

The effect of Cu dopant on structural and optical properties of spray deposited CdS films

M. A. Al-Hur

journal of kerbala university, Volume 10, Issue 4, Pages 175-184

CdS and copper doped Cd1-xSCux thin films have been prepared by the spray pyrolysis method. The optical band gaps of pure and doped CdS were found to be varied from 2.34 to 2.45 eV with increase x from 0 to 0.1. The X-ray diffraction (XRD) analysis revealed that the films were polycrystalline and exhibited two phases cubic and hexagonal structure with increasing the hexagonal phase with increasing Cu ratio.

Effect of Indium Tin Oxide (ITO) Nanoparticles on the Optical Properties Of PMMA Polymer

Asama Natik.Naje; Salma M. Hasan; Estabrak Talib

journal of kerbala university, Volume 8, Issue 3, Pages 17-23

In this work the optical properties of the PMMA polymer doped with different concentrations of ITO nanoparticles had been studied. All samples were prepared by casting technique with thickness of 1 mm. The optical properties ((absorption, transmission, absorption coefficient, extinction coefficient and refractive index) had been investigated. The doped composites have shown shifted toward the visible region. Whereas measured energy gap for pure and doped polymer shows decreases in the energy gap from 5.5eV to 3.5eV. The refractive index of pure polymer decreases as wavelength increase, where the refractive index of the doped polymer increases with increasing ITO concentrations.

Effect of MWCNT on Electro-Optical Properties of Liquid Crystal

Sudad S. Ahmed; Rawa K. Ibrahim; Asama N.Naje; Kais Al-Naimee

journal of kerbala university, Volume 8, Issue 3, Pages 1-6

Dispersions of multi wall carbon nanotubes (MWCNTs) in liquid crystals (LCs)type 5CB have attracted attention due to their unique properties and possible applications in photonics and electronics. The results of the investigations of improved the electro-optical properties of liquid crystal optical switch are being presented here. The addition of MWCNT showed fast response time ,fast rise time,and lower threshold voltage.

The Electronic transitions of polyaniline doped with p- toluene Sulfonic acid

Kareema M. Ziadan

journal of kerbala university, Volume 1, Issue 0, Pages 67-47

Polyaniline doped with p-toluene Sulphonic acid PAni-PTSAwas synthesized by using a new oxidative chemical polymerization method. The polymer solution deposited on, glass and Aluminum substrate by spin coating technique.Fourier Transform Infrared (FTIR) spectra, and ultraviolet visibility (uv- vis. absorption) spectra, were used to characterize the molecular structures of PAni-PTSA and electronic translation of polymer . The optical analyses indicated that the transition was direct transition with energy gape about 2.5eV. The electrical properties were measured by two probe method. The conductivity values of this polymer is about(8*10-4 S/cm ).