方酸作桥联配体的双核铕螯合物的电致发光 |
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引用本文: | 魏孝强,朱卫国,杨爱丽,李龙章,谢明贵,杨刚,林祖伦,成建波.方酸作桥联配体的双核铕螯合物的电致发光[J].化学学报,2003,61(3):388-392. |
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作者姓名: | 魏孝强 朱卫国 杨爱丽 李龙章 谢明贵 杨刚 林祖伦 成建波 |
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作者单位: | 1. 四川大学化学学院,成都,610064 2. 湘潭大学化学化工学院,湘潭,411105 3. 电子科技大学光电信息学院,成都,610054 |
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基金项目: | 国家自然科学基金 (No .2 9972 0 32 )资助项目 |
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摘 要: | 利用方酸作为桥联配体合成了一种双核铕鳌合物Eu_2(DBM)_4(Sq)Phen_2 .用TPD作空穴传输材料、Eu_2(DBM)_4(Sq)Phen_2作发光材料和载流子传输材料、 8-羟基喹啉和铝(AlQ)作电子传输材料,设计了不同电致发光电特性,结果表明 Eu_2(DBM)_4(Sq)phen_2是一种同时具有空穴和电子传输能力的红色电致发光 材料,在器件结构为ITO/TPD,50nm/Eu_2(DBM)_4(Sq)Phen2,20nm/ALQ,50nm/LiF, 1nm/Al,200nm时,获得了在16V,6.9mA下有最大亮度91cd/m~2的电致发光器件.
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关 键 词: | 方酸 铕络合物 电致发光 发光材料 羟基喹啉类 铝 电子传输 |
修稿时间: | 2002年6月6日 |
Electroluminescent Devices Based on Binuclear Europium Chelate with Square Acid as Bridge Ligand |
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Affiliation: | Department of Chemistry,Sichuan University;Department of Chemistry, Xiangtan University;University of Electronic Science and Technology of China |
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Abstract: | A novel europium chelate, Eu 2(DBM) 4(Sq)Phen 2, which has a bridge ligand of squaric acid, was synthesized and used as organic electroluminescent materials. Five light-emitting diodes using TPD as hole-transporting material, Eu 2(DBM) 4(Sq)Phen 2 as emitting material, and AlQ as electron-transporting material were fabricated. The results indicate that this europium chelate possesses both hole-transporting and electron-transporting abilities. When the structure of device is ITO/TPD, 50 nm/Eu 2(DBM) 4(Sq)Phen 2, 20 nm/AlQ, 50 nm/LiF, 1 nm/Al, 200 nm, the maximum luminance of 91 cd/m 2 at 16 V was achieved. |
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Keywords: | square acid europium chelate electroluminescence photoluminescence |
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