燃烧法合成BaMgAl10O17:Eu2+荧光体及发光性能的研究

液晶与显示 , 2007, 22(1): 32-36. doi: 10.3969/j.issn.1007-2780.2007.01.007

燃烧法合成BaMgAl10O17:Eu2+荧光体及发光性能的研究

张然 ^1, , 朱卫华 ^2, , 周桃俊 ^3, , 夏春艳 ^4, , 王金凤 ^5,

1.江苏大学,化学化工学院,江苏,镇江,212013

2.江苏大学,化学化工学院,江苏,镇江,212013

3.江苏大学,化学化工学院,江苏,镇江,212013

4.江苏大学,化学化工学院,江苏,镇江,212013

5.江苏大学,化学化工学院,江苏,镇江,212013

基金项目: 江苏省高校自然科学基金(03KJD320062)

关键词：发光 , 燃烧法合成 , BaMgAl10O17 , Eu2+

Combustion Synthesis and Luminescent Properties of Phosphor BaMgAl10O17:Eu2+

应用燃烧法在较低温度(600 ℃)下,于空气中快速合成BaMgAl10O17:Eu2+(BAM)荧光体.通过XRD和荧光光谱对荧光体进行表征和研究,考察了Eu2+的掺入浓度、尿素用量和Sr2+的掺杂等对荧光体发光性能的影响.结果表明BaMgAl10O17:Eu2+荧光粉在450 nm处的荧光发射源于Eu2+的4f65d1-4f7跃迁.荧光体的发射强度与Eu2+浓度有很大关系,当Eu2+摩尔分数为10%时,发射强度最大.尿素用量对荧光体结晶性能和发光性能有很大影响,当尿素与硝酸盐之比为2.5∶1时,荧光体发光强度最高.Dy3+、Er3+、Nd3+和pr3+掺杂时,荧光体发光强度增加.Sr2+的掺杂对BAM荧光体的晶体结构和发光性能有很大影响.

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