Lithium niobate (LiNbO₃) is a non-naturally-occurring salt consisting of niobium, lithium, and oxygen. Lithium niobate (LiNbO₃) is one of the most widely studied photonic crystal materials. In this work the chemical bath deposition method was employed for preparing lithium niobate (LiNbO₃; LN) nanostructures. LiNbO₃ nanostructures were deposited on quartz substrates. Stirring was continued for 12 h and deposition was performed at various times (5, 10, 15, 20 and 25 min). The Optimum condition was at 15 minute. The optical
properties have been investigated using UV-Vis spectrophotometer and structural properties using X-ray diffractometer. Structural properties reveals that all the samples have a hexagonal structure with a maximum diffraction peak at the (012) diffraction plane and at 2θ = 23.75. Optical absorption reveals the absorbance of a sample with the energy gap shifting with decreasing in deposition time from 3.8 eV to 4 eV with the peak position of absorption in UV region.