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

Abstract

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.