Hashim, A., Hamad, Z. (2020). Lower Cost and Higher UV-Absorption of Polyvinyl Alcohol/ Silica Nanocomposites For Potential Applications. Egyptian Journal of Chemistry, 63(2), 461-470. doi: 10.21608/ejchem.2019.7264.1593
Ahmed Hashim; Zinah Hamad. "Lower Cost and Higher UV-Absorption of Polyvinyl Alcohol/ Silica Nanocomposites For Potential Applications". Egyptian Journal of Chemistry, 63, 2, 2020, 461-470. doi: 10.21608/ejchem.2019.7264.1593
Hashim, A., Hamad, Z. (2020). 'Lower Cost and Higher UV-Absorption of Polyvinyl Alcohol/ Silica Nanocomposites For Potential Applications', Egyptian Journal of Chemistry, 63(2), pp. 461-470. doi: 10.21608/ejchem.2019.7264.1593
Hashim, A., Hamad, Z. Lower Cost and Higher UV-Absorption of Polyvinyl Alcohol/ Silica Nanocomposites For Potential Applications. Egyptian Journal of Chemistry, 2020; 63(2): 461-470. doi: 10.21608/ejchem.2019.7264.1593
Lower Cost and Higher UV-Absorption of Polyvinyl Alcohol/ Silica Nanocomposites For Potential Applications
Receive Date: 15 January 2019,
Revise Date: 09 February 2019,
Accept Date: 28 June 2019
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.
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