Fine-Tuning the Emission Color of a Transparent Suspension of SrMoO4: Eu3+, Tb3+ Nanophosphors

摘要

The emission colors of transparent suspensions of SrMoO4: Eu3+, Tb3+ nanophosphors in hexane could be finely tuned for use in multicolor transparent displays. The emission color in the green-red spectral region was tuned by changing the concentrations of the Eu3+ and Tb3+ activator ions. SrMoO4: Eu3+, Tb3+ nanophosphors with diameters of 5 nm were synthesized via solvothermal reactions in a hexane-water bilayer system consisting of Sr-oleate, Eu-oleate, and Tb-oleate complexes in hexane and an aqueous (NH4)(6)Mo7O24 solution. A simple phase-transfer method was used to prepare the Sr-oleate, Eu-oleate, and Tb-oleate complexes in hexane from aqueous Sr(NO3)(2), Eu(NO3)(3), and Tb(NO3)(3) solutions with the assistance of sodium oleate, oleic acid, and oleylamine.