Photoluminescent improvement of SrMoO4 by the electrochemical formation of Ca2+-doped solid solutions

Abstract Pure SrMoO 4 and CaMoO 4 , and SrMoO 4 solid solution crystallites were successfully prepared by a simple electrochemical process. The photoluminescence (PL) of SrMoO 4 can be greatly improved by incorporating Ca 2+ into its matrix to form solid solutions, and their emission bands slightly red-shift from 500 nm to 509 nm due to the local structure relaxation. Doping Ca 2+ would inhibit the growth of SrMoO 4 solid solution crystallites to result in smaller size crystallization. The smaller the particle sizes of the solid solutions, the higher their PL intensity.