Preparation and luminescence properties of Sr7Zr(PO4)6:Dy3+ single-phase full-color phosphor

作者：Zhang, Zhi-wei^*; Liu, Lu; Wang, Yue-hui; Song, Shi-tao; Wang, Dong-jun

来源：Journal of Materials Science: Materials in Electronics , 2015, 26(6): 4202-4206.

DOI：10.1007/s10854-015-2967-6

• WHITE-LIGHT GENERATION
• PHOTOLUMINESCENCE PROPERTIES
• EMITTING PHOSPHOR
• EMISSION

Novel single-phase white-light-emitting Sr7Zr(PO4)(6):Dy3+ phosphors for light-emitting diode (LED) applications were synthesized by conventional solid-state reactions. The phases and luminescent properties of the obtained Sr7Zr(PO4)(6):Dy3+ phosphors were characterized. The results show that the luminescence spectra excited by 350 nm consist of two characteristic blue and yellow bands, corresponding to the F-4(9/2) -> H-6(15/2) and F-4(9/2) -> H-6(13/2) transitions of Dy3+, respectively. When x > 0.02, the concentration quenching effect occurred, and the critical transfer distance (R-c) was similar to 19.247 . The energy transfer of the Dy3+ ions is the electric dipole-dipole interaction mechanism. The International Commission on Illumination chromaticity coordinates for Sr7-x Zr(PO4)(6):xDy(3+) phosphors were located in the white region. The developed phosphor has great potential as a single-component white-light-emitting phosphor for UV-LEDs.

• 出版日期2015-6
• 单位河北科技师范学院