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Preparation of BaSc 2 O 4 :Ce 3+  phosphor is made by high temperature solid phase method. The prepared phosphor samples were analyzed by XRD, SEM, PL and CIE. The result shows Ce 3+  doping does not change the phase structure of the BaSc 2 O 4  matrix, and the particles have good smoothness, uniform element distribution, and have not other impurity elements. BaSc 2 O 4 :Ce 3+  phosphor can be excited by ultraviolet light (439 nm) and emit green light (495 nm) with good purity. The color coordinates of BaSc 2 O 4 :Ce 3+  phosphor is (0.2493, 0.5239), and the color temperature is 7414 K, and the fluorescence lifetime is 1.49 ns. By assembling this phosphor with red phosphor and blue chip, a WLED with good luminous performance can be obtained.

Preparation and performance of Ce 3+ -doped BaSc 2 O 4 phosphor