The contribution of Eu3+ doping concentration on the modulation of morphology and luminescence properties of InVO4:Eu3+

摘要

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) : x Eu ~(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.