Enhancing of piezoelectric coefficient and optical Properties of flexible ZnO/Poly (Vinylidene Fluoride-Trifluoroethylene) Nanocomposites for Optoelectronic Applications | ||
| Egyptian Journal of Chemistry | ||
| Volume 66, Issue 13, December 2023, Pages 1519-1543 PDF (1.36 M) | ||
| Document Type: Review Articles | ||
| DOI: 10.21608/ejchem.2023.207514.7913 | ||
| Authors | ||
| Aya Hassan1; Afaf Sarhan2; Maysa Abdelhamid1; Tarek Fahmy1; Ahmed Habib* 1 | ||
| 1Polymer Research Group, Physics Dept., Faculty of Science, Mansoura University, 35516 | ||
| 2Polymer Research Group, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt | ||
| Abstract | ||
| The casting method is employed to produce the nanocomposite samples of ZnO/poly (vinylidene fluoride-trifluoroethylene) PVDF-TrFE with various contents of ZnONPs. Various techniques such as FTIR, XRD, DSC, UV-Vis and TGA are used to advance appreciation of the microstructure of PVDF-TrFE after embedding of ZnO nanoparticles. XRD showed that the electroactive -phase fraction is enhanced and other parameters describe the crystalline structure like size of crystals, internal strain of lattice and density of dislocation are estimated. Analysis of FTIR spectra showed an interaction between PVDF-TrFE and ZnONPs and this explained the enhancement and growth of the electroactive -phase fraction. DSC measurements showed that the temperature of ferroelectric to paraelectric phase transition is reduced from 404 K for PVDF-TrFE to 377 K for 1.25 wt% ZnO/PVDF-TrFE nanocomposite sample. TGA analysis of PVDF-TrFE revealed that with rising the content of ZnO NPs, the thermal stability enhanced. The impact of ZnO NPs on the behavior of the optical properties like absorbance, refractive index (n), extinction coefficient (k), indirect and direct optical band gap energy (Eig and Edg), oscillator and dispersion energies (Eo and Ed), oscillator strength (f) and parameters of nonlinear and linear optical (NLO) of ZnO/PVDF-TrFE nanocomposites are investigated in more details. The improvement of nonlinear optical parameters recommends them to be applied in various applications of nonlinear optical devices and optoelectronics. | ||
| Keywords | ||
| PVDF-TrFE; β-polar phase; Band gap; harvesting energy; Piezoelectric coefficient | ||
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