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以TTA为配体合成了新的共掺杂稀土配合物Tb0.5Eu0.5(TTA)3Dipy,通过与PVK的掺杂,分析了PVK和Tb0.5Eu0.5(TTA)3Dipy之间的能量传递过程,并且制备了以PVK∶Tb0.5Eu0.5(TTA)3Dipy为发光层的结构为ITO/PVK∶Tb0.5Eu0.5(TTA)3Dipy/PBD/Al的发光器件,通过改变两者之间的质量比,得到了较纯的Eu3+的红色发光。通过与PVK∶Eu(TTA)3混合体系的比较,发现Tb3+的引入,起到了能量传递桥梁的作用,提高了PVK到Eu3+的能量传递,从而抑制了PVK的发光。因此,通过引入适当的第二种金属离子,会增强另一稀土离子的发光,是作者提高稀土离子发光效率的一种有效的手段。
A novel co-doped rare earth complex Tb0.5Eu0.5 (TTA) 3Dipy was synthesized using TTA as ligand. The energy transfer between PVK and Tb0.5Eu0.5 (TTA) 3Dipy was analyzed by doping with PVK And a light-emitting device of ITO / PVK: Tb0.5Eu0.5 (TTA) 3Dipy / PBD / Al with a PVK: Tb0.5Eu0.5 (TTA) 3Dipy as a light emitting layer was prepared, Of the mass ratio, have been more pure Eu3 + red light. Through the comparison with the PVK: Eu (TTA) 3 mixed system, we find that the introduction of Tb3 + plays a role of energy transfer bridge and increases the energy transfer from PVK to Eu3 +, thus inhibiting the luminescence of PVK. Therefore, by introducing the appropriate second metal ions, will enhance the luminescence of another rare earth ions, the author is an effective means to improve the luminescent efficiency of rare earth ions.