Fabrication and optical properties of Pr-doped Ba (Sn, Zr, Mg, Ta) O transparent ceramic phosphor.

To the best of our knowledge, we have successfully fabricated a novel transparent ceramic phosphor of Pr-doped Ba (Sn, Zr, Mg, Ta) O (Pr:BMT) via a high-temperature solid-state reaction method. The in-line transmittance of 59% at 650 nm was measured. The Pr:BMT ceramic phosphor can emit 650 nm red light excited by 447 nm blue light.

Strongly enhanced luminescence of SrAlO:Mn phosphor by co-doping B and Na ions with red emission for plant growth LEDs.

Development of a more cost-effective radiation source for use in plant-growing facilities would be of significant benefit for commercial crop production applications. A series of co-doped B and Na ions SrAlO:Mn inorganic luminescence materials which can be used for plant growth were successfully synthesized through a conventional high-temperature solid-state reaction. Powder X-ray diffraction was used to confirm the crystal structure and phase purity of the obtained samples.

MMgSc(PO):xDy (M = Ca/Sr) Single-Phase Full-Color Phosphor with High Thermal Emission Stability.

Two series of phosphors of CaMgSc(PO):Dy and SrMgSc(PO):Dy 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 CaMgSc(PO):xDy and SrMgSc(PO):xDy were investigated and compared in detail. Upon excitation at 387 nm, MMgSc(PO):xDy (M = Ca/Sr) showed white emission centered at 480, 571, 660, and 754 nm.

Enhanced Luminescence Performances of Tunable LuYAlO:Mn Red Phosphor by Ions of Rn (Li, Na, Ca, Mg, Sr, Sc).

A novel red-emitting LuAlO:Mn (LuAG:Mn) phosphor was synthesized by a solid-state reaction. The emission-band position is shifted to red region by gradually increasing the amount of substitution of Lu for Y, eventually yielding fully YAlO:Mn (YAG:Mn). The compared structural and optical properties of the phosphors were investigated.

Longitudinally diode-pumped planar waveguide YAG/Yb:LuAG/YAG ceramic laser at 1030.7 nm.

Composite YAG/15 at. % Yb:LuAG/YAG transparent ceramic planar waveguide was fabricated by a tape casting method and vacuum sintering technology. Under a 970 nm diode laser pumping, the absorbed efficiency of 85.