Study of shockwave-induced structural, optical and dielectric modifications in ZnO nanoparticles for advanced photonic applications

The current work presented about study of structural, optical and vibrational properties of Zinc Oxide (ZnO) nanoparticles (NPs) when subjected to shockwave treatments at 0, 50 and 100 pulses respectively. Powder X-ray diffraction (PXRD) analysis reveals that steady hexagonal structure, with extended crystallinity and slight changes in diffraction peaks were identified at higher shockwave treatment on the nanoparticles which indicates that the microstructural alterations. Fourier-transform infrared spectroscopy (FTIR) verifies the existence of stretching vibrations in ZnO NPs. FESEM analysis shows noticeable morphological changes in ZnO-50 shockwaves, along with reduced crystallite and particle sizes compared with ZnO without shock and ZnO-100 shockwaves. EDX verifies the presence of the constituent elements, while PL analysis reveals variations in the defect-related emission behaviour. The band gap was calculated for prepared and shock wave influenced nanoparticles by using UV-Vis spectroscopy which exhibits that the band gap increases with increment of shockwave pulses with the highest value of 3.1570 eV observed for ZnO-50. Dielectric measurements were analysed for without shock and shockwave-treated ZnO and dielectric constants values at 368 K are measured as 45 for ZnO without shock, 107 for ZnO-50 and 127 for ZnO-100. Thus, the adaptability of ZnO under shockwave treatments are made on the synthesized prepared nanoparticles which is suitable for applications in optoelectronics and photonics fields.