| 以BBOT为电子传输层的聚合物蓝色发光二极管 |
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| 引用本文： | 张志林,蒋雪菌.以BBOT为电子传输层的聚合物蓝色发光二极管[J].发光学报,1994,15(4):363-365. |
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| 作者姓名： | 张志林 蒋雪菌 |
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| 作者单位： | 1. 上海科技大学材料系, 上海 201800;2. 日本芝浦工业大学工学部, 东京108, 日本 |
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| 摘 要： | 在前篇文章中1]我们报导了以perylene掺杂的PVCz聚合物单层电致发光器件,得到蓝色发光,其亮度为59(cd/m2).在这篇文章中,我们以PVCz作为空穴传导层,BBOT为电子传导层制成了双层结构的发光二极管.亮度和效率都大大超过单层器件.
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| 关 键 词： | 电子传输层 BBOT 发光二极管 聚合物 电致发光 |
| 收稿时间： | 1994-05-31 |
A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER |
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| Zhang Zhilin,Jiang Xueyin,Xu Shaohong,Satio S,Nagamoto T,Omoto O.A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER[J].Chinese Journal of Luminescence,1994,15(4):363-365. |
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| Authors: | Zhang Zhilin Jiang Xueyin Xu Shaohong Satio S Nagamoto T Omoto O |
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| Institution: | 1. Department of Materials Science, Shanghai University of Science and Technology, Shanghai 201800;2. Shibaura Institute of Technology, Shibaura 3-9-14 Minato-Ku, Tokyo 108, Japan |
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| Abstract: | Blue emitting electroluminescent diode using polyvenylcarbazole(PVCz)as a hole transporting layer and BBOT as an electron transporting layer has been constructed.A luminance of as high as 680cd/m2 with quantum efficiency more than 0.15% has been obtained.In order improve the crystalization of the BBOT a novel structure has been used.Instead of the pure BBOT of former diode,in the improved diode(type Ⅱ)BBOT and PVCz were co-evaporated with gradual increase of BBOT concentration on the PVCz layer.The brightness could reach 1700cd/m2,but no increase of efficeincy has been observed.A graded junction is supposed to be formed which increases the injected current and the light intensity. |
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