掺杂Gd对铕配合物Eu_xGd_(1-x)(TTA)_3(TPPO)_2绝对量子效率和荧光寿命的影响

Influence of Gd doping on the absolute quantum efficiency and lifetime of Eu_xGd_(1- x)( TTA)_3( TPPO)_2

掺杂不同比例的Gd到铕配合物中得到一系列共发光稀土配合物EuxGd1-x(TTA)3(TPPO)2。这些稀土配合物相似的红外光谱表明掺杂Gd前后的稀土配合物具有类似的分子结构。激发光谱表明所有稀土配合物的最大激发波长都在366 nm附近。绝对量子效率和荧光寿命随着Gd含量的变化呈准周期性变化,同时绝对量子效率和荧光寿命的变化趋势恰好相反,说明了稀土配合物吸收能量后尽快地将能量转化为光能释放出去有利于绝对量子效率的提高。

Gd doped with different proportions of europium complexes can obtain a series of luminescent lanthanide complexes Eux Gd1-x （TTA）3（TPPO）2. These rare earth complexes showed similar IR spectra before and after Gd-doped rare earth complexes with similar molecular structure. Excitation spectra indicate that all rare earth complexes are in the vicinity of the maximum excita-tion wavelength of 366 nm. Absolute quantum efficiency and fluorescence lifetime change with Gd content was quasi - periodic varia-tions, while the trend absolute quantum efficiency and fluorescence lifetime contrary, which indicates the absorbed energy of rare earth complexes is released out as soon as possible after the energy into light energy ,which is helpful to improve the absolute quan-tum efficiency.