Luminescent properties of rare earth complexes of Gd1 − xEux(TTA)3Dipy in nano-TiO2
Luminescent properties of rare earth complexes of Gd1 − xEux(TTA)3Dipy in nano-TiO2
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DOI：
10.1016/j.matlet.2007.07.072
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发表时间：
2008-03
影响因子：
3
通讯作者：
Y. Lv;Jingchang Zhang;Yali Fu;W. Cao;Lin Song;Zheng Xu
中科院分区：
文献类型：
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作者：
Y. Lv;Jingchang Zhang;Yali Fu;W. Cao;Lin Song;Zheng Xu
以乙烯基三氟丙酮（HTTA）、2,2 /-二吡啶基（Dipy）和不同金属离子（Eu3+和Gd3+）为配体合成了几种稀土配合物。采用元素分析、DTA-TGA、IR和荧光光谱等方法对其含量、结构和光电性能进行了监测。结果表明，掺入Gd3+后，Eu3+配合物的发光增强，并报道了稀土配合物的热稳定性。此外，制备了ITO/PVK: Gd1−xEux(TTA)3Dipy: TiO2/Al有机无机复合器件，在发光层中加入纳米TiO2，改变了Gd1−xEux(TTA)3Dipy的电致发光性能。我们对不同比例的Gd1 - xEux(TTA)3Dipy在自旋铸造薄膜r min - 1中的光谱进行了监测。发现配体与金属离子之间存在有效的能量传递过程。
Some kinds of rare earth complexes were synthesized using the ligands of thenoyltrifluoroacetone (HTTA), 2, 2/-dipyridyl(Dipy) and different metal ions (Eu3+and Gd3+). Their contents, structures and optoelectronic property were monitored by elemental analysis, DTA-TGA, IR and fluorescence spectroscopy. This result showed luminescence of Eu3+complex was enhanced after doped with Gd3+, the thermal stability of rare earth complexes was also reported. In addition, the organic–inorganic combined device ITO/PVK: Gd1−xEux(TTA)3Dipy: TiO2/Al was fabricated, the nano-TiO2has been used in the luminescence layer to change the electroluminescence property of Gd1−xEux(TTA)3Dipy. We have monitored the spectra of Gd1−xEux(TTA)3Dipy with different ratios for spin-cast film r min−1. It was found that there was an efficient energy transfer process between the ligands and metal ions.