Synthesis And Photoluminescence Property Of RE3+ Activated Na2CaP2O7 Phosphor
J. A. Wani, N. S. Dhoble, N. S. Kokode, S. J. Dhoble
Volume 5, Issue 8, Page 459-464, Year 2014 | DOI: 10.5185/amlett.2014.amwc.1211
Sodium calcium pyrophosphate; luminescence; phosphors; solid state lighting.
As host materials, phosphate compounds offer great potential for lanthanides to display luminescence characteristics. In this work luminescence behaviour of Na2CaP2O7:RE3+ are presented for the first time. Na2CaP2O7 novel phosphors activated with the trivalent rare earth ions ((RE = Ce, Eu, Tb, Sm) were synthesized by solid state diffusion method. Phosphors were characterized for phase purity and luminescent properties. The emission and excitation spectra were followed to explore the luminescence attributes. The as prepared powders of Ce3+, Eu3+,Tb3+ and Sm3+ doped Na2CaP2O7 emit near-uv, red, green and orange reddish light as result of f-d and f-f transitions respectively. The study is novel as no such luminescence data are available for this compound. The results are promising in view of the requirement for pc-white LEDs for solid state lighting applications. Copyright © 2014 VBRI press.