Lower Cost and Higher UV-Absorption of Polyvinyl Alcohol/ Silica Nanocomposites For Potential Applications | ||||
| Egyptian Journal of Chemistry | ||||
| Article 9, Volume 63, Issue 2, February 2020, Page 461-470 PDF (1.47 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2019.7264.1593 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Ahmed Hashim  1; Zinah Hamad2
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| 1University of Babaylon | ||||
| 2University of Babylon | ||||
| Abstract | ||||
| Films of (polyvinyl alcohol- silicon dioxide) nanocomposites were prepared for UV- shielding with low cost, low weight and excellent anti-UV properties. Studying the structural and optical properties of PVA/SiO2 nanocomposites have been investigated. The experimental results showed that the absorbance (A), absorption coefficient (), extinction coefficient (K), refractive index (n), real (ε1) and imaginary (ε2) parts of dielectric constants and optical conductivity (σop) of PVA are increased with increasing of the SiO2 concentrations. The transmittance (T) and energy band gap (Eg) decrease as a SiO2 concentrations increase. Also, te results showed that (PVA-SiO2) nanocomposites can be used for flexible solar cells, diodes and transistors applications. | ||||
| Keywords | ||||
| absorbance; silicon dioxide; Nanocomposites; Flexible; anti-UV | ||||
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