White Light Generation from Single Gallium Oxide Nanoparticles co-doped with Rare-Earth Metals

Abstract

The synthesis of pure and rare-earth doped gallium oxide (β-Ga2O3) nanoparticles isreported. The synthesized nanoparticles are characterized with XRD, TEM, and PL analyses. Strong blue emission is observed from un-doped gallium oxide nanoparticles, whilenanoparticles doped with Eu3+ and Tb3+ give strong red and green emissions, respectively. When doped with Eu3+ and Tb3+ together, gallium oxide nanoparticles emit white light. TheCIE co-ordinate of the emitted light was found to be (0.33, 0.33), which is well within thewhite light region.