Deagglomeration in Eu³⁺ -activated Li₂Gd₄(MoO₄)₇ polycrystalline incorporated polymethyl methacrylate

Li₂Gd₄(MoO₄)₇: Eu³⁺/PMMA composite flakes (LGMP: Eu³⁺) have been obtained via embedding Eu³⁺ -activated LGM polycrystalline precursor powders into polymethyl methacrylate (PMMA). The precursor powder with a size of ∼7 μm is confirmed to form the sea-island-like structure by SEM, which is helpful to the stability of the particle-polymer coexistence network in LGMP: Eu³⁺ flakes. Differential photon-generating behaviors are revealed under short-wave radiation and the effectiveness of PMMA is verified in reducing the mutual collision probability and avoiding the powder agglomeration. Although the LGMP: Eu³⁺ system has lower powder content in contrast to the pure precursor, its luminosity is still comparable to the pure one due to its favorable particle dispersibility. Efficient photon-conversion and intense red-emission indicate the organic-inorganic composite of PMMA loaded LGM: Eu³⁺ system is a potential candidate for solid-state lighting and color displays.