Sol-gel preparation and photoluminescence properties of CaLa2(MoO4)4:Eu3+ phosphors

► The spheroid phosphor CaLa2(MoO4)4:Eu3+ has been synthesized by sol-gel process. ► The optimum concentration for Eu3+ was determined to be about 70 at%. ► The Eu3+ ions in CaLa2(MoO4)4 may occupy S4 Site. ► CaLa2(MoO4)4:Eu3+ has the strong red emission and suitable chromaticity coordinates.