VUV-UV-vis photoluminescence of Ce3+ and Ce3+-Eu2+ energy transfer in Ba2MgSi2O7
VUV-UV-vis photoluminescence of Ce3+ and Ce3+-Eu2+ energy transfer in Ba2MgSi2O7
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Ba2MgSi2O7 中 Ce3 和 Ce3 -Eu2 能量转移的 VUV-UV-vis 光致发光
DOI：
10.1016/j.jlumin.2017.01.027
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发表时间：
2017
影响因子：
3.6
通讯作者：
Liang Hongbin
中科院分区：
文献类型：
--
作者：
Yan Jing;Liu Chunmeng;Zhou Weijie;Huang Yan;Tao Ye;Liang Hongbin
采用高温固相反应法制备了一系列Ce 3+掺杂和Ce 3 +-Eu 2+共掺杂的Ba 2 MgSi 2 O 7发光材料。研究了Ce ~（3+）的光致发光特性，包括同步辐射VUV-UV激发光谱、发射光谱、浓度效应和热稳定性。从而确定了Ce ~（3+）的晶场分裂5d激发态的能量。由于光谱重叠，在Ba 2 MgSi 2 O 7：Ce 3+，Eu 2+中发生了从敏化剂Ce 3+到激活剂Eu 2+的能量转移，其机理被证明是电偶极-偶极相互作用。
A series of Ce3+doped and Ce3+-Eu2+co-doped Ba2MgSi2O7phosphors was prepared via a high-temperature solid-state reaction technique. The photoluminescence properties, which include synchrotron radiation VUV-UV excitation spectra, emission spectra and concentration effect, thermal stability of Ce3+are investigated. Hence the energies of the crystal field split 5d excited states of Ce3+are determined. Due to spectral overlap, the energy transfer from sensitizer Ce3+to activator Eu2+in Ba2MgSi2O7:Ce3+, Eu2+occurs, and the mechanism is demonstrated to be an electric dipole−dipole interaction.