Abstract
In this paper, lead-free sodium potassium niobate thin films have been prepared by using a chemical solution deposition-based spin coating route. The effect of different anealing temperatures on structural and optical properties has been studied. The phase analysis of thin films was investigated by using X-ray diffraction analysis. The microstructure and surface roughnes of thin films were studied by using atomic force microscopy. Raman spectroscopy analysis revealed that increase in annealing temperature gives rise to better crystallinity and perovskite phase. Optical parameter of thin films has been studied by using reflectance spectroscopy at room temperature. Photoluminescence analysis has been conducted by using an exciting wavelength of 300 nm at room temperature.
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