Review on efficient calcium aluminate-based phosphors prepared by combustion synthesis technique

Rare earth doped aluminate-based phosphors are being preferred as efficient luminescent materials over sulfide-based phosphors. Present focus is to utilize unique luminescence features of lanthanide-based materials for multidisciplinary research and inventive applications. The growing research interest in aluminate-based phosphors over the past years has headed to the achievement in the enhancement in their long-lasting phosphorescence, phosphorescence efficiencies. Combustion synthesis route is a proficient technique due to the easier process, self-propagation ability, less time-consuming and cost effective as compared with many other routes for preparing nano-phosphor. In this article, our objective is to elaborate the uniqueness of combustion synthesis route for the preparation of phosphor materials composed of calcium aluminate (CaAl2O4). The combined results of persistence luminescence, luminescence properties of RE ion doped CaAl2O4 phosphor are discussed and critically reviewed. The effect of various dopant to favour the emission of radiation with different colors in the visible spectrum are also narrated.