Tailoring the optical properties of PVA/PVP blend by doping with Cu/MnS nanoparticles

Abstract

PVA/PVP blend embedded with different ratios of nano Cu0.9Mn0.1S (Cu/MnS) was prepared with thermolysis and casting techniques. X‐ray diffraction analysis showed the formation of nano Cu/MnS as a single hexagonal phase with an average crystallite size 11 nm. Scanning electron microscope (SEM) revealed nearly homogenous particles morphology. Fourier transform infrared (FTIR) spectroscopy technique was applied to characterize the Cu/MnS doped PVA/PVP matrix. UV measurements were utilized to investigate the optical properties in detail. Upon doping with Cu/MnS, the bandgap of PVA/PVP was significantly decreasing with the amount of doping; which enabling tailoring the band gap depending on the doping content. The analysis showed that the main possible transitions in pure PVA/PVP blend are indirect allowed and direct forbidden. On the other hand, for the doped blend samples, the direct allowed is the main possible transition. Moreover, the refractive index and the real and imaginary parts of the dielectric constant increased upon increasing the Cu/MnS amount doped.

Improvement of the optical characteristics of PVA/PVP blend with different concentrations of SnS2/Fe

“…The blending of two or more polymers together represented a method to improve the performance of a material. [1,2] The produced polymer blends exhibit a different behavior as compared with the constituent polymers. [1,2] Polyvinyl alcohol (PVA) has different internal structures, which may be considered amorphous or semicrystalline.…”

“…[1,2] The produced polymer blends exhibit a different behavior as compared with the constituent polymers. [1,2] Polyvinyl alcohol (PVA) has different internal structures, which may be considered amorphous or semicrystalline. [3] The semicrystalline structure of PVA showed an important feature rather than of amorphous one.…”

Microstructure Study And Linear/Nonlinear Optical Properties of Bi-Embedded PVP/ PVA Films For Optoelectronic And Optical CUT-OFF Applications

“…It may have a distinct feature, enhancing the advantages of both additive polymers and improving their desirable characteristics. Also, they are dependent on the miscibility degree of the host polymers [3][4][5][6].…”

“…Their properties can be modified by adding different substances and particles [3][4][5]. Therefore, composites can be produced because the polymeric materials create a miscible solvent of strong hydrogen bonding between the molecules of the constituents [7].…”

Noval properties of PVA/PVP polymer blend doped by nano-ZnO/M (M = Co, Cu, Mn, V)

“…PVA has been investigated intensively owing to its good film producing and physical characteristics, high hydrophilicity, processability and good chemical resistance [6,7]. PVP has good environmental stability, easy processability, moderate electrical conductivity and rich physics in charge transport mechanism [8][9][10]. PVA contains OH groups while PVP has a pyrrolidone ring, which has a proton-accepting carbonyl group [11,12].…”