Journal
OPTICAL MATERIALS
Volume 42, Issue -, Pages 335-339Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2015.01.024
Keywords
Blend nanocomposites; Ultraviolet-Visible spectroscopy; Band gap; Extinction coefficient
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Funding
- DST, Govt. of India
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PC50%/PS50% polymer blend nanocomposites, undoped and doped with different concentration of ZnO nanoparticles (1, 2, 3 wt%), have been prepared using solution casting method. Structural and optical studies have been performed using X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Ultraviolet Visible spectroscopy (UV-Vis). ZnO nanoparticles have been synthesized by chemical route method. The nanostructure of the ZnO nanoparticles has been ascertained through X-ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). Optical Absorption Spectra has been used to study optical constants of prepared blend nanocomposites. Energy band gap of PC/PS-ZnO blend nanocomposites have been calculated by using Tauc relation. The band gap of the nanocomposites decreases as ZnO wt% increases. Extinction coefficient, refractive index and real & imaginary part of dielectric constants increase with increase in ZnO nanoparticles wt%. (C) 2015 Elsevier B.V. All rights reserved.
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