1. M8MgSc(PO4)7:xDy3+ (M = Ca/Sr) Single-Phase Full-Color Phosphor with High Thermal Emission Stability
- Author
-
Xuanyi Yuan, Chaoyang Ma, Fujuan Chu, Yuzhen Wang, Wenfeng Dong, Zicheng Wen, Chong Zhao, Yongge Cao, Miaomiao Du, Ran Ma, and Jiaqi Long
- Subjects
Photoluminescence ,Chemistry ,Analytical chemistry ,Phosphor ,02 engineering and technology ,Crystal structure ,Thermal emission ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Emission intensity ,Spectral line ,0104 chemical sciences ,Inorganic Chemistry ,Physical and Theoretical Chemistry ,Single phase ,0210 nano-technology ,Excitation - Abstract
Two series of phosphors of Ca8MgSc(PO4)7:Dy3+ and Sr8MgSc(PO4)7:Dy3+ single-phase white-emitting phosphors with high thermal emission stability are synthesized by the high-temperature solid-state reaction. The crystal structure, photoluminescence (PL), PL excitation (PLE), and thermal PL quenching spectra of Ca8MgSc(PO4)7:xDy3+ and Sr8MgSc(PO4)7:xDy3+ were investigated and compared in detail. Upon excitation at 387 nm, M8MgSc(PO4)7:xDy3+ (M = Ca/Sr) showed white emission centered at 480, 571, 660, and 754 nm. The white-emitting Dy-phosphor Ca8MgSc(PO4)7:Dy3+ (CMSP:Dy) had good terminal stability. The emission intensity of Ca8MgSc(PO4)7:Dy3+ still remained 95.2% of that at room temperature at 160 °C, and remained 77.3% at 300 °C under 387 nm excitation.
- Published
- 2017