Swift heavy ion induced structural and optical properties of Y2O3:Eu3+ nanophosphor

This paper reports the structural and optical modifications of Y2O3:Eu3+ nanophosphor induced by 150 MeV Ni7+ swift heavy ions (SHI) in the fluence range 1 × 1011 to 1 × 1013 ions/cm2. The XRD, TEM and FTIR studies confirm the loss of crystallinity of the nanophosphors after ion irradiation. Diffuse reflectance spectrum shows a blue shift in the absorption band for SHI induced nanophosphors. An increase in the intensity of photoluminescence peaks without any shift in the peak positions was observed.