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Mithaq M. Mehdy Al- Sultani
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Medicine & Pharmacology

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The Study of all the Optical, Electrical and the Performance Coefficients for the (Rhodamine B - Acriflavine) Laser Dyes Solar Cells Doped with Nanoparticles Mithaq M. Mehdy Al- Sultani
Journal of Global Pharma Technology Volume 12 Issue 01
Publisher : Journal of Global Pharma Technology

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Abstract

In this study of the effect of nanomaterials on the performance of Solar cells with laser dyes. The study included visual measurements of the dye solutions with different concentrations on the optical properties such as absorption and transmittance (A, T), the absorption coefficient, refractive index, reflectivity and optical conductivity at the wavelengths (400-800) nm. Using the UV-visible spectrum device, the value of the energy gap was calculated. The changing in the values of the previous variables the focus. The electrical properties as ( dielectric constant 14ε "> , the permittivity of  14ϵ "> , medium impedance 14Z">  , electrical conductivity 14 σE ">  were also calculated. the electrical response time 14tE">   dielectric time 14tdie "> ,  and the permeability 14μ">  were also calculated, and the solar cells Parameters ( 14Voc"> ), ( 14Isc"> ), ( 14Rsh"> ), ( 14Rs"> ), ( 14Pin"> ), (ŋ), F.F) with silver nanoparticles of higher efficiency than the cell coated with zinc oxide particles Zno is 16.9%.Keywords: Rhodamine B dye, Acriflavine dye, Ag,Zno nanoparticles, Solar cell, laser dyes.
The Study of A Linear and Non-Linear Optical Property for PMMA Thin Films Doped with the Rhodamine B Laser Dye and Ag Nano Particles are Used in Medicine Mithaq M. Mehdy Al- Sultani
Journal of Global Pharma Technology .
Publisher : Journal of Global Pharma Technology

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Abstract

Four different mixtures of ( 10-3 mol/l Rhoda mine B laser dye , 0.1 gm PMMA and one of Ag nano particles weights ( 0.02 gm ,0.04 gm , 0.06 gm and 0.08 gm ) )   had been prepared using chloroform solvent .Four different thin films had been made from these mixtures  using drop casting method .The absorption   spectrums of  these thin films had been taken . The absorption spectral properties as (peak wave length, peak absorbance and frequency difference at half absorbance maximum) had been measured depending on the absorption spectrums for thin films. The non- linear optical properties as (Transmittance difference )  ,Non –linear phase shift    , Non-linear Refractive index  , Minimum normalized transmittance  and  Non-linear absorption coefficient ) were calculated according to normalized transmittance data obtained from Z—scan setup with closed and open aperture .The main conclusion is that the Ag nano particles causes a shift of  the absorption wavelengths  to longer wavelengths ( red shift ) , so this helps in choosing the medium and nano particles with appropriate excitation wavelengths .Keywords: Rhoda mine B laser dye, Ag nano particles, Linear, Non-linear, Properties. 
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