A new-fangled polymer of poly(vinyl alcohol) (PVA) doped with various concentrations of lead(II) Titanate (PbTiO3, PT) is prepared using the casting technique method. The prepared samples are identified by Attenuated Total Reflection- Fourier Transform Infrared (ATR-FTIR). The peaks characterized to PVA at 3280, 2917, 1690, 1425, 1324, 1081, 839 cm-1 appeared, also the peak characterized to the presence of PbTiO3 appeared at 713 cm-1. The interaction between PVA and PbTiO3 was confirmed by observing the change in IR absorption intensity. Optical properties were determined by Urbach theory and direct transition theory. The absorption edge values and the band tail energies decrease with increasing PbTiO3. The values of direct and indirect band gaps decrease with increasing PbTiO3 contents, indicating a variance in internal states by increasing PbTiO3. Composite with 10 wt.% PbTiO3 is promising for UV protective applications.
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Optical Investigation of PVA/ PbTiO3 Composite for UV Protective Approaches Applications.
Published:
15 October 2021
by MDPI
in The 2nd International Electronic Conference on Applied Sciences
session Applied Physics
https://doi.org/10.3390/ASEC2021-11172
(registering DOI)
Abstract:
Keywords: PVA composites, Optical Properties, PbTiO3