2022
DOI: 10.47758/ijn.vi3.62
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The Study the Influence of TiO2-Nanoparticles Doped in Polyvinyl Alcohol by Measuring Optical Properties of PVA Films

Abstract: It was investigated how titanium dioxide nanoparticles affected the optical properties of polyvinyl alcohol. Polymer nanocomposites (PVA-TiO2) are created via stirring and casting. The results demonstrate that transmittance improves from 75% to 95% while titanium dioxide concentration enhances the absorbance of nanocomposites. Nanocomposite films made of PVA and TiO2 had reflectance values of 12 and 16 percent (weight percent=0.15 and 0.85%).The refractive index and coefficient of extinction rise with increasi… Show more

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“…Energy band gap Eg for indirect transitions in (PVA-Ag) nanocomposite can be calculated. According to the results, when the amounts of (Ag) nanoparticles increases, the energy gap decreases from( 5.19 to 4.95eV) as show in Table (3).The most plausible reason is the creation of a localized level in the forbidden energy gap as a result of increasing the fillers nanoparticle weight percentage [17]. The coefficient of extinction can be calculated by Equation (3).…”
Section: Figure (13)mentioning
confidence: 93%
“…Energy band gap Eg for indirect transitions in (PVA-Ag) nanocomposite can be calculated. According to the results, when the amounts of (Ag) nanoparticles increases, the energy gap decreases from( 5.19 to 4.95eV) as show in Table (3).The most plausible reason is the creation of a localized level in the forbidden energy gap as a result of increasing the fillers nanoparticle weight percentage [17]. The coefficient of extinction can be calculated by Equation (3).…”
Section: Figure (13)mentioning
confidence: 93%