双色可调荧光粉MgY2Al4SiO12：Eu2＋,Ce3＋的发光性能和能量传递机理研究

来源 :浙江化工 | 被引量 : 0次 | 上传用户：qq343246680

【摘要】

：

采用高温固相法制备了双色可调荧光粉 MgY2Al4SiO12：Eu2＋，Ce3＋，并对其晶体结构和发光特性进行了研究。在340nm紫外光激发下荧光粉的发射光谱由两个谱带组成，以445nm为主峰的蓝光发

【作者】

：

吴海勤徐雨胡青松潘再法

【机构】

：

浙江工业大学化学工程学院

【出处】

：

浙江化工

【发表日期】

：

2017年1期

【关键词】

：

MgY2Al4SiO12:Eu2+ Ce3+ 发光特性能量传递双色荧光粉 gY2Al4SiO12：Eu2＋ Ce3＋ luminescence prope

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采用高温固相法制备了双色可调荧光粉 MgY2Al4SiO12：Eu2＋，Ce3＋，并对其晶体结构和发光特性进行了研究。在340nm紫外光激发下荧光粉的发射光谱由两个谱带组成，以445nm为主峰的蓝光发射带归属于Eu2＋的4f65d1→4f7能级跃迁，峰值位于565nnl的黄光发射带则对应于Ce3＋的5d_4f（2F2／7，2F2／5）跃迁。根据Dexter共振能量传递理论和Reisfeld近似计算得到Eu2＋，Ce3＋之间存在电偶极一电偶极能量传递过程。当Eu2＋和Ce3＋的掺杂浓度分别为0．01和0．

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双色可调荧光粉MgY2Al4SiO12：Eu2＋,Ce3＋的发光性能和能量传递机理研究

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