Synthesis and luminescence characterization of a new yellowish‐orange phosphor: Ba 2 B 10 O 17 :Sm 3 +

A new yellowish‐orange emitting phosphor, Ba 2 B 10 O 17 :Sm 3 + for use as a white light‐emitting diode (W‐LED) was synthesized by a solid‐state reaction method. The X‐ray diffraction results indicated that a pure Ba 2 B 10 O 17 material was obtained. As a potential yellowish‐orange luminescent material for W‐LEDs, the Ba 2 B 10 O 17 :Sm 3 + phosphor could be excited effectively by near‐ultraviolet (n‐UV) light and exhibited yellowish‐orange emission centered at 560 nm corresponding to the 4 G 5/2  →  6 H 5/2 transition of Sm 3 + ions. The optimum concentration of Sm 3 + ions in Ba 2 B 10 O 17 , critical transfer distance (Ra) and concentration quenching mechanism of the presented phosphor were investigated. Moreover, CIE chromaticity coordinates and color purity performance of the Ba 2 B 10 O 17 :Sm 3 + phosphor were also discussed. The present work suggests that the Ba 2 B 10 O 17 :Sm 3 + phosphor has potential as a type of yellowish‐orange emitting phosphor. Copyright © 2016 John Wiley & Sons, Ltd.