First 0.1 M bismuth nitrate was dissolved in 5 ml ethylene glycol. However, for europium-doped samples, 5 mole% europium nitrate was also added with bismuth nitrate in 5 ml ethylene glycol. In addition, the lithium nitrate was added to nearly 5, 10, and 15 moles% (to prepare lithium co-doped samples) and fixed the 5 moles% concentration of europium doping in all samples. A 0.11 M solution of NH4F was prepared in 75 ml distilled water. Further, the prepared NH4F solution was added to ethylene glycol (Which contains the complex solution of bismuth nitrate, lithium nitrate, and europium nitrate). A white precipitate was observed that was transferred to the Teflon Lined autoclave and heated at 140 °C for 12h. Total four samples were prepared that were BOF-A, BOF-B, BOF-C, and BOF-D. BOF-A sample contained no lithium only 5 mole percentage of europium but other samples BOF-B, BOF-C, and BOF-D contained 5, 10, and 15 mole% of lithium along with constant 5 mole% of europium, respectively.