The study of Y/WS3 nanocomposite seeing solar cell study is still in nascent stages. A limited number of research works have explored the synthesis and characterization of yttrium-based nanocomposite, particularly those involving WS3. Previous studies have predominantly focused on the individual properties of Y/WS3 in various applications, including catalysis, photodetectors, and energy storage. However, the combination of these materials into a nanocomposite and their specific application in solar cells is relatively unexplored. In this work, we have described the synthesis and characterization of Y/WS3 nanocrystal using a facile hydrothermal method. XRD examination low-intensity widened peaks that specify the sample exist amorphous nature. UV–Vis spectroscopy was carried out to obtain the absorbance region toward as-synthesized sample, discovered, particularly UV region with significant absorbance peaks at 373.5 and 417.5 nm along with the optical band-gap of 2.07 eV. FESEM show the formation of the Nano-sheets with aggregated to form pebble like structure. These detailed analyses give us an exceptional insight of structural, luminous and surface properties for these nanocomposites, which consist of 2D, Y and WS3 nanosheets. Yttrium-doped nanocomposite, particularly structured nanosheet offer a solution by develop efficiency of the solar cells through mobility and energy conversion rates. The nanocomposite in nanotechnology are drive the next generation of high-efficiency and low-cost photovoltaic devices.