Synthesis and Vacuum Ultraviolet Spectral Properties of Nano-scaled Phosphors

摘要

The nano-scaled red phosphor YBO_(3): Eu~(3+), green phosphor ZnSiO_(4): Mn~(2+) and blue phosphor BaMgAl_(10)O_(17): Eu~(2+) were synthesized by wet-chemical techniques. The morphologies and spectral properties of the three nano-phosphors under 147 nm excituation were investigated. For YBO_(3): Eu~(3+), nano-sheets was obtained by solvent-thermal process, which reached 78.8% of the commercial red phosphor on emission intensity and exhibited better color purity than the latter. For ZnSiO_(4): Mn~(2+), different morphologies were obtained by hydrothermal method with varying ratio of CTAB to TEOS, among which the nano-spheres presented the strongest emission intensity and reached 86% of that of the commercial green phosphor. For BaMgAl_(10)O_(17): Eu~(2+), nano-rods were acquired using sol-gel process, which exhibited 78.15% of the commercial blue phosphor on emission intensity and the low y value of color coordinates, which indicated that the nano-rods were efficient for restricting the deteriorate during application.