Preparation and characterization of blue-light-excited nanophosphors using an economically low-energy process

•Three microwave (MW) processes achieved high PL efficiency of nanophosphor.•The EG solvent provided homogeneous nucleation and activator homogenization.•Pseudo-oxide crystal may form during microwave heating in EG+KOH system.•Low MW power 100W economically reduced post-heating temperature to 600°C....

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