Structure and Luminescent Properties of SrSi{sub}2N{sub}2O{sub}2 Co-Doped Yb{sup}(2+) and Nd{sup}(3+) Phosphor by Hydrothermal Synthesis Process

摘要

The luminescence properties of Yb{sup}(2+) and Nd{sup}(3+)-activated strontium-silicon-oxynitrides have been studied by hydrothermal synthesis process. The X-ray diffraction (XRD) measurement, absorption spectrum, and photoluminescence spectrum of the powder phosphors were presented. It absorbs tight efficiently in the blue region (450nm～500nm), that shows a single intense broadband emission at 570nm. Then SrSi{sub}2N{sub}2O{sub}2 is a good host material for green-yellow phosphors (570nm), combines with blue LED light (470nm) that it stimulates in the phosphor to generate a whitish light.