Molten Salt Synthesis of LaPO4:Eu3+
Eu doped LaPO4 nanocrystals were successfully synthesized by molten salt method calcined at 700°C. The structure, morphology and photoluminescence of as-synthesized product were characterized. The results reveal that all the doped samples are well crystalline at 700°C and assigned to the monoclinic monazite-type structure of the LaPO4 phase. It has been shown that the obtained nanocrystals to be long rod-like with diameters of 5-10 nm and length of 100-150 nm. The luminescence intensities strongly improved due to the high crystallinity because of the molten salt as the medium in thermal treatment posscess.
Yansheng Yin and Xin Wang
Q. Liu et al., "Molten Salt Synthesis of LaPO4:Eu3+", Advanced Materials Research, Vols. 79-82, pp. 2235-2238, 2009