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用固相法制备Ba3(0.92-y)Ce0.16Eu2yV2O8(0≤y≤0.1)系列样品.发射光谱的检测结果表明,Ba3(0.92-y)Ceo16EU2yV2O8能同时发出Ce3+的紫光、蓝光和EU3+的红光,说明基质吸收的能量可以分别传递给Ce3+和Eu3+.而且,Ce3+的发光强度随Eu3+的浓度增减变化不大,而Eu3+的浓度能在很大程度上改变红光的强度.因此,可通过Eu3+的浓度变化调节蓝光和红光的强度比获得白光.

参考文献

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