Enhanced red emission in ZnMoO₄ : Eu³⁺ by charge compensation

Abstract

Eu 3+ doped ZnMoO 4 with charge compensation were synthesized by solid-state reactions. The phosphors with different charge compensation approaches, and , were studied in detail. All of the phosphors can be effectively excited by 396 and 467 nm light, and exhibit superior red emission around 614 nm to ZnMoO 4 : Eu 3+ without charge compensation, which implies that efficient charge compensation can promote the luminescence of Eu 3+ in ZnMoO 4 . The influence of sintering temperature on the luminescent properties of phosphors with different charge compensation approaches is also discussed. The result indicates that appropriate charge compensation can not only enhance the relative intensity but can also improve the colour purity of the red phosphor.