Optimization of the synthesis of Er-Y-Ba-Na quaternary fluoride up-conversion phosphor and luminescence properties

摘要

The wavelength of 1550 nm has broad application prospect in the field of laser communications. A kind of Er-Y-Ba-Na quaternary fluoride sensitive to 1550 nm was synthesized by high-temperature solid state reaction method and the synthesis conditions were optimized with orthogonal experiments. The samples present the green and red characteristic emission of Er~(3＋) while the ratio of red to green emission intensity shows higher obviously compared with the representative fluoride upconversion material NaYF_4: Er,Yb. The possible physical mechanism was discussed.