Luminescence studies on Ba₂ZnSi₂O₇: Eu(2+) phosphors crystals.
A novel blue green-emitting phosphor, Ba₂ZnSi₂O₇: Eu(2+), was prepared by combustion synthesis method and an efficient bluish green emission under from ultraviolet to visible light was observed. The emission spectrum shows a single intensive band centered at 503 nm, which corresponds to the 4f(6)5d(1) → 4f(7) transition of Eu(2+). The excitation spectrum is a broad band extending from 260 to 465 nm, which matches the emission of ultraviolet light-emitting diodes (UV-LEDs). The effect of doped Eu(2+) concentration on the emission intensity of Ba₂ZnSi₂O₇: Eu(2+) was also investigated. The result indicates that Ba₂ZnSi₂O₇: Eu(2+) can be potentially useful as a UV radiation-converting phosphor for white light-emitting diodes.
Yao
Shan-shan
SS
State Key Laboratory of Materials Processing and Die and Mold Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Li
Yuan-yuan
YY
Xue
Li-hong
LH
Yan
You-wei
YW
You
Yan
Y
D001464:Barium / Q000737:chemistry*; D003460:Crystallization; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D017640:Silicates / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
D017640:Silicates; D001464:Barium; D005063:Europium; D015032:Zinc