Tuning into blue and red luminescence in dual-phase nano-glass–ceramics

摘要: A series of γ-Ga2O3 and β-YF3 nanocrystals embedded dual-phase glass ceramics co-doped with rare earth (Eu3+ or Tm3+) transition metal (Cr3+) activators were successfully prepared by high-temperature melt-quenching to explore blue/red luminescent materials for potential application in photosynthesis green plants. It is experimentally verified that Eu3+ (or ions partitioned into the crystallized orthorhombic YF3 nanophases, while Cr3+ ones entered precipitated cubic Ga2O3 after crystallization. Such spatial separation different active can effectively suppress adverse energy transfers between ions, resulting their independent efficient luminescence. As an example, it demonstrated both intense Tm3+ blue deep-red emissions are easily achieved Tm3+/Cr3+ ceramics.