| 稀土掺杂Lu3Al5O12荧光粉的发光特性及能量传递 | |
| Luminescence and Energy Transfer of Rare Earth Doped Lu3Al5O12 Phosphor | |
| 摘要: 采用高温固相法制备了Ce、Sm共掺Lu3Al5O12荧光粉。通过X射线衍射分析、荧光光谱分析研究了样品的结构、发光特性，并通过理论计算研究了能量传递效率、能量传递的临界距离以及能量传递方式。X射线衍射分析表明所制备的荧光粉具有单一的石榴石结构；荧光光谱分析表明，在464 nm蓝光激发下，Sm3+的引入可增加Lu3Al5O12：Ce，Sm发射光谱中红光成分，并且随着Sm3+浓度的增加，Ce3+发光强度逐渐减弱。计算出Ce3+、Sm3+之间的能量传递效率高达77.42%，确定了Ce3+、Sm3+之间的能量传递机制为偶极-偶极相互作用。 | |
| 关键词: Lu3Al5O12 Ce3+ Sm3+ 发光 能量传递 | |
| 基金项目: 国家自然基金（No.61307118）、吉林省科技发展计划项目（No.20130102016JC，20130522176JH）和大学生创新计划项目（No.2015S031）资助。 | |
| Abstract: Lu3Al5O12:Ce, Sm fluorescent phosphors were synthesized by high temperature solid-state method. The structures and luminescence properties of samples was analyzed by X-ray diffraction and fluorescence spectrum analysis. Additionally, the energy transfer efficiency, the transfer critical distance and the way of energy transfer were calculated. X-ray diffraction analysis shows that the synthesized phosphors have single garnet structure; the fluorescence spectrum analysis shows that the introduction of Sm3+ can increase the red component of the emission spectrum of Lu3Al5O12:Ce, Sm fluorescent phosphors under the excitation wavelength of 464 nm blue light and with the increase of Sm3+ concentration, the luminescence intensity of Ce3+ gradually decreased. Besides, the energy transfer efficiency between Sm3+ and Ce3+ as high as 77.42% was calculated. The transfer mechanism of Ce3+ and Sm3+ is determined to be dipole-dipole interaction. | |
| Keywords: Lu3Al5O12 Ce3+ Sm3+ luminescence energy transfer | |
| 投稿时间：2016-04-29 修订日期：2016-09-10 | |
| 摘要点击次数: 996 | |
| 全文下载次数: 1074 | |
| 田燕娜,杜英,沈巧巧,焦艳,马婧,柏朝晖.稀土掺杂Lu3Al5O12荧光粉的发光特性及能量传递[J].无机化学学报,2016,32(10):1771-1776. | |
| 查看全文 查看/发表评论 下载PDF阅读器 | |
| Support information: | |
|
| |
|
| |
|
| |