Open AccessImprovement Optical Properties of PVA/ TiO2 and PVA/ ZnO Nanocomposites
Author(s) -
Nadheer Jassim Mohammed,
Zahraa S. Rasheed,
Ashraf S. Hassan
Publication year - 2019
Publication title -
al-mustansiriyah journal of science
Language(s) - English
Resource type - Journals
eISSN - 2521-3520
pISSN - 1814-635X
DOI - 10.23851/mjs.v29i3.629
Subject(s) - materials science , molar absorptivity , polyvinyl alcohol , nanocomposite , optical conductivity , band gap , refractive index , dielectric , nanoparticle , doping , attenuation coefficient , transmittance , absorption (acoustics) , absorption spectroscopy , nanotechnology , optoelectronics , composite material , optics , chemistry , physics
The optical properties of polyvinyl alcohol (PVA) doped TiO2 and ZnO nanoparticles respectively, were studied. PVA/TiO2 and PVA/ZnO nanoparticles were prepared by the pulsed laser ablation technique (PLA).The optical properties of PVA/ TiO2 and PVA/ ZnO nanocomposite solution have been investigated by transmittance data and absorption spectra. The optical band gap (Eg) was determined and the optical absorption spectra showed that a direct transition. The energy gap of PVA/ ZnO nanoparticles have been observed the decreases its value and increasing in the optical conductivity as compared to PVA/ TiO2.The refractive index (n), extinction coefficient (k) and dielectric constant have been also investigated; it was found that all the above parameters affects by doping.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom