Photoluminescence of Eu(III) Doped Double Perovskite Phosphor for Red LED Application

Abstract

The luminescence property of Ba2CeNbO6 has been studying by varying Eu(III) concentration. Ba2CeNbO6 doped with trivalent ions of Eu has a monoclinic phase with P21/n space group. FTIR of Ba2CeNbO6 gives information that phosphor has a nano–size perovskite structure with an edge-connected Nb-O octahedral. Photoluminescence properties of Eu(III) doped Ba2CeNbO6 have been examined with excitation wavelength 275nm and 466 nm. Luminescence emission spectra exhibited three prominent peaks around 580 nm, 596 nm, and 610nm wavelength for Eu(III). Using xenon lamp as a source and having excitation wavelength 275 and 466nm, observing that the maximum light emission yielded in the region presenting a color-correlated temperature in the range of 1500 – 2900 K.