| 一种新型稀土配合物Eu(TTA)(2NH_2-Phen)_3的发光特性研究 |
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| 引用本文： | 闫光,张福俊,徐征,吕玉光,赵谡玲,李秋萍,孔超,岳欣.一种新型稀土配合物Eu(TTA)(2NH_2-Phen)_3的发光特性研究[J].光谱学与光谱分析,2009,29(12). |
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| 作者姓名： | 闫光 张福俊 徐征 吕玉光 赵谡玲 李秋萍 孔超 岳欣 |
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| 作者单位： | 1. 北京交通大学发光与光信息技术教育部重点实验室,北京交通大学光电子技术研究所,北京,100044
2. 佳木斯大学化学与药学院,黑龙江佳木斯,154007 |
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| 基金项目： | 国家自然科学基金项目，北京交通大学优秀博士生科技创新基会项目，教育部博士点基金项目，北京市科技新星计划项目(2007A024).教育部留学回国科研启动基金项目;校基金项目，高等学校学科创新引智计划项目，北京市教育委员会学科建设与研究生教育建设项目资助 |
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| 摘 要： | 合成了一种新型的稀土配合物Eu(TTA)(2NH_2-Phen)_3,将其作为掺杂物与基质聚乙烯基咔唑(PVK)按照不同质量比混合共溶,旋涂成膜.测量了混合薄膜的光致发光光谱,确认了所合成的Eu(TTA)(2NH_2H-Phen)_3具有发射荧光的能力,进而将其应用于电致发光器件中.还制备了以PVK:Eu(TTA)(2NH_2-Phen)_3为发光层,器件结构为ITO/PVK:Eu(TTA)(2NH_2-Phen)3/2,9-dimethy1-4,-diphenyl-1,10-plaenan thmline(BCP)/8-hydroxyquinoline aluminum(Alq_3)/Al的多层器件,得到了 Eu~(3+)的红色电敛发光.研究不同掺杂浓度时器件发光光谱的变化及PVK的发射光谱与Eu(TTA)(2NH_2-Phen)_3的吸收光谱的交叠情况,证明了混合薄膜中Eu~(3+)电致发光机理主要足载流子的直接俘获.
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| 关 键 词： | 稀土配合物 发光 载流子俘获 |
Study on Luminescence Properties of a Novel Rare Earth Complex Eu(TTA)(2NH_2-Phen)_3 |
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| YAN Guang,ZHANG Fu-jun,XU Zheng,LU Yu-guang,ZHAO Su-ling,LI Qiu-ping,KONG Chao,YUE Xin.Study on Luminescence Properties of a Novel Rare Earth Complex Eu(TTA)(2NH_2-Phen)_3[J].Spectroscopy and Spectral Analysis,2009,29(12). |
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| Authors: | YAN Guang ZHANG Fu-jun XU Zheng LU Yu-guang ZHAO Su-ling LI Qiu-ping KONG Chao YUE Xin |
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| Institution: | YAN Guang1,ZHANG Fu-jun1,XU Zheng1,Lü Yu-guang2,ZHAO Su-ling1,LI Qiu-ping2,KONG Chao1,YUE Xin11.Key Laboratory of Luminescence and Optical Information,Ministry of Education,Institute of Optoelectronics Technology,Beijing Jiaotong University,Beijing 100044,China2.College of Chemistry and Pharmacy,Jiamusi University,Jiamusi 154007,China |
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| Abstract: | A novel rare earth complex Eu(TTA)(2NH_2-phen)_3 was synthesized. The Eu complex was blended with poly(N-vi-nylcarbazole) (PVK)in different weight ratios and spin coated into films. The photoluminescence of Eu(TTA)(2NH_2-phen)_3 was obtained. Multilayer devices with PVK : Eu(TTA)(2NH_2-phen)_3 as the active layer were fabricated, and the device structure was ITO/PVK: Eu (TTA) (2NH_2-phen)_3 / 2, 9-dimethyl-4,-diphenyl-1,10-phenan throline (BCP) /8-hydroxyquinoline alumi-num(Alq_3 ) /AL The influence of Eu(TTA)(2NH_2-phen)_3 doping concentration on electroluminescence spectroscopy was stud-led. It was found that the EL spectra do not change with the doping concentration. The spectral overlapping of the emission spectrum of PVK and the absorption spectrum of Eu(TTA)(2NH_2-phen)_3 is very small. From the above experimental results, it can be demonstrated that the mainly mechanism of Eu(TTA)(2NH_2-phen)_3 EL is charge carrier directly trapped by ligand. |
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| Keywords: | Rare earth complex Luminescence Carrier trapping |
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