Structural, morphological and photometric properties of sonochemically synthesized Eu3+ doped Y2O3 nanophosphor for optoelectronic devices

Abstract

Synthesis of Eu3+doped Y2O3 nanophosphors via modified sonochemical method was presented. Morphologies of the prepared products were analyzed with respect to the 2 influential parameters during the preparation time. The photoluminescence (PL) emission spectra exhibits several peaks at ~ 537 nm, 598 nm, 613 nm and 662 nm attributed to 5D0→7FJ (J = 0, 1, 2 & 3) transitions of Eu3+ ions in the host lattice. The types of energy transfer between the Eu3+ ions were responsible for concentration quenching confirms the electric dipole–quadrupole interaction among the ions. The Judd-Ofelt intensity parameters and other radiative properties were estimated by using PL emission spectra. The photometric characteristics of the prepared samples indicate that the color co-ordinates were tune towards pure red emission with color purity ~ 88 %. The results signified that the prepared Y2O3:Eu3+ nanophosphor was a potential amber phosphor for solid state and LED’s applications.