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在900°C高温条件下,合成了一系列Ce3+,Eu2 +以及Tb3 +掺杂Ca2BO3Cl荧光粉.该荧光粉在紫外及蓝光区域有较强的吸收,产生了以Ce3 +Eu2 +以及Tb3 +为发光中心的荧光,其发射峰分别位于416 nm,570 nm及544 nm处.荧光谱图数据表明:以Ca2BO3Cl为基质的荧光粉中存在着Ce3 +→Eu2 +的能量传递.并且通过调节Eu2 +浓度的量,该荧光粉在紫外激发下可以产生从冷白光到暖白光不同的光.这同时也说明该荧光粉在白光发光二极管中具有潜在的应用价值.
A series of Ce3 +, Eu2 + and Tb3 + -doped Ca2BO3Cl phosphors were synthesized under high temperature of 900 ° C. The phosphors have a strong absorption in the ultraviolet and blue regions, resulting in the emission of Ce3 +, Eu2 + and Tb3 + Fluorescence of the luminescent center has emission peaks at 416 nm, 570 nm and 544 nm, respectively.Fluorescence spectrum data show that the energy transfer of Ce3 + → Eu2 + exists in the Ca2BO3Cl-based phosphor, and the Eu2 + Concentration, the phosphor can generate different light from cool white light to warm white light under ultraviolet excitation, which also shows that the phosphor has potential application value in white light emitting diode.