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采用溶液反应和固相反应分别合成了K3 AlF6基质化合物及KBF4∶Ce,Tb和K3 AlF6∶Ce,Tb等磷光体 ,研究了它们的光谱特性 ,并与KAlF4∶Ce,Tb、CaF2 ∶Tb和AlF3 ∶Ce,Tb等磷光体的发光特性进行了比较。结果发现 ,CaF2 ∶Ce ,Tb、AlF3 ∶Ce ,Tb、KBF4∶Ce,Tb和K3 AlF6∶Ce ,Tb等磷光体中Ce3 +对Tb3 +的能量传递不能有效进行 ,有时Tb3 +甚至对Ce3 +起猝灭作用。仅在KAlF4∶Ce,Tb中Ce3 +能有效地进行能量传递 ,使Tb3 +的发光强度大大增强 ,因而KAlF4有可能成为一种有应用前景的氟铝酸盐类发光材料基质化合物。
K3 AlF6 matrix compounds and KBF4: Ce, Tb and K3 AlF6: Ce, Tb phosphors were synthesized by solution reaction and solid phase reaction respectively. Their spectral properties were studied and compared with KAlF4: Ce, Tb, CaF2: Tb and AlF3: Ce, Tb and other phosphors were compared. The results show that the energy transfer of Ce3 + to Tb3 + in CaF2: Ce, Tb, AlF3: Ce, Tb, KBF4: Ce, Tb and K3AlF6: Ce, Tb and other phosphors can not be effectively carried out. From the quenching effect. Only in KAlF4: Ce, Tb Ce3 + can effectively carry out energy transfer, so that the luminous intensity of Tb3 + greatly enhanced, so KAlF4 may become a promising fluoroaluminate phosphors matrix compounds.