高温固相法制备SrZrSi_(2)O_(7):Ce^(3+),Mn^(2+)荧光粉及其发光性能  

Preparation of SrZrSi_(2)O_(7):Ce^(3+),Mn^(2+)Phosphors by High-temperature Solid-phase Method and Their Luminescence Properties

作　　者：程诚 李淑华[1] 张怀康 巴学巍[1] Cheng Cheng;Li Shuhua;Zhang Huaikang;Ba Xuewei(School of Materials Science and Engineering,Qiqihar University,Heilongjiang,161006)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,黑龙江161006

出　　处：《当代化工研究》2025年第2期176-178,共3页Modern Chemical Research

基　　金：黑龙江省教育厅基本科研业务专项“以依安高岭土为原料制备结晶釉的研究”(项目编号:135109215)。

摘　　要：采用高温固相法制备了SrZrSi_(2)O_(7):Ce^(3+),Mn^(2+)荧光粉。通过X射线衍射(X-ray Power Diffractometer,XRD)、激发和发射光谱及电子显微分析对材料的分子结构、显微形貌、发光特性和能量传递机理进行了研究。结果表明,荧光粉的主晶相是单斜晶系的SrZrSi_(2)O_(7),Ce^(3+)离子和Mn^(2+)离子占据一部分Sr^(2+)离子的晶体学格位。在296 nm激发下,可以观察到来自Ce^(3+)离子的蓝光发射峰,归属于Ce^(3+)离子的5d→4f能级跃迁。在544 nm处,有来自Mn^(2+)离子的绿光发射峰,归因于Mn^(2+)离子的^(4)T_(1)(4G)-^(6)A_(1)(6S)自旋禁止跃迁,表明发生了从Ce^(3+)离子到Mn^(2+)离子的能量传递过程,为设计蓝光到绿光之间可控制备的新型荧光粉提供了理论和实验的信息。SrZrSi_(2)O_(7):Ce^(3+),Mn^(2+)phosphors were prepared by high-temperature solid-state method.X-ray diffraction(XRD),excitation and emission spectroscopy and electron microscopy were used to study the structure,luminescence properties and energy transfer mechanism of the materials.At 296 nm excitation,the blue emission peak from the Ce^(3+)ion can be observed,which is attributed to the 5d→4f energy level transition of the Ce^(3+)ion,and at 544 nm,there is a green emission peak from the Mn^(2+)ion,which is attributed to the ^(4)T_(1)(4G)-^(6)A_(1)(6S)spin prohibition transition of the Mn^(2+)ion,indicating that the energy transfer process from the Ce^(3+)ion to the Mn^(2+)ion has occurred.

关 键 词：SrZrSi_(2)O_(7):Ce^(3+) Mn^(2+) 发光材料 能量传递 

分 类 号：O433.4[机械工程—光学工程]