| 发光效率及稳定性改善的有机薄膜电致发光器件 |
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| 引用本文： | 张志林 长友隆男. 发光效率及稳定性改善的有机薄膜电致发光器件[J]. 发光学报, 1996, 17(4): 372-375 |
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| 作者姓名： | 张志林 长友隆男 |
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| 作者单位： | 1. 上海大学嘉定校区材料科学系, 上海 201800;2. 日本芝浦工业大学工学部, 东京テ108, 日本 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 不久前,我们报导了以TPD为空穴传输层,Alq为电子传输兼发光层的双层薄膜电致发光器件,在定电流密度6mA/cm2连续驱动下,初始亮度106cd/m2下降至一半亮度的时间为120小时,而继续操作500小时,亮度仍有38cd/m2[1]。在这篇文章中,我们将报道一个在上述器件的空穴传输层TPD中掺杂而构成的新器件。这个新器件发光亮度和效率比原器件增加了50%,而稳定性增加了近10倍,初始亮度165cd/m2的半亮度寿命达1200小时。
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| 关 键 词： | 有机薄膜 电致发光器件 发光效率 稳定性 |
| 收稿时间： | 1996-07-23 |
AN ORGANIC THIN FILM ELECTROLUMINESCENCE DEVICE WITH IMPROVED EFFICIENCY AND STABILITY |
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| Zhang Zhilin,Jiang Xueyin,Xu Shaohong,Nagatomo T,Omoto O. AN ORGANIC THIN FILM ELECTROLUMINESCENCE DEVICE WITH IMPROVED EFFICIENCY AND STABILITY[J]. Chinese Journal of Luminescence, 1996, 17(4): 372-375 |
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| Authors: | Zhang Zhilin Jiang Xueyin Xu Shaohong Nagatomo T Omoto O |
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| Affiliation: | 1. Department of Materials Science, Shanghai University Jiading Campus, Shanghai 201800;2. Shibaura Institute of Technology, Shibaura 3-9-14 Minato-Ku, Tokyo 108. Japan |
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| Abstract: | Rubrene is doped into the hole transport layer of an organic thin film electroluminescent (OTFEL) device with a double-layered structure. It is found that the dopant has profound influences on the EL characteristics. It changes the region of light emission and thus the EL spectrum, increases the luminescence efficiency by more than 50% and improves the device stability by 10 times. The effect of the dopant on the energy relation of the materials discussed. |
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