The contribution of Eu(3+) doping concentration on the modulation of morphology and luminescence properties of InVO(4):Eu(3+)

Nanostructures of InVO(4) and InVO(4):Eu(3+) were synthesized through a hydrothermal method with a post annealing process. The morphology and luminescence properties of InVO(4):xEu(3+) can be modulated by Eu(3+) ion doping concentration. SEM and (HR)TEM studies indicated that different sizes of nanoparticles were obtained when the Eu(3+) ion concentration ranged from 2 mol% to 30 mol%, and middle-concave nanodisks or nanoparticles with different sizes were obtained with the Eu(3+) ion concentration ranging from 35 mol% to 45 mol%. Luminescence property studies indicated that the photoluminescence emission originated both from VO(4)(3−) and Eu(3+), and the emission of VO(4)(3−) was blue shifted, affected by the doped Eu(3+) ions. The CIE chromaticity diagram of Eu(3+)-doped indium vanadate exhibited green, blue-green, red, giving especially white light emission.