Herein formation of pure In2O3 thin film for OLED material is reported. Synthesis and characterization are reported inside the manuscript. PL spectra were recorded for ultraviolet radiation and it shows down-conversion with emission peaks centred at 448 nm (Blue Region), 513 nm (Green Region) and 609 nm (red Region). For this emission spectra CIE coordinated are plotted and found to touches white light boundary with enhance blue emission. For CIE coordinate value of x = 0.27, y = 0.28 are found. The colour rendering index and co-related colour temperature are calculated for its practical/industrial ability. Thermoluminescence glow curve analysis of prepared pallet and it is found good TL glow curve response with UV dose. Now as formed thin film may be useful for energy efficient photovoltaic application.