| Cs2 CO3共蒸阴极对有机电致发光器件性能的影响 |
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| 引用本文： | 侯林涛,王平,刘彭义,张靖磊,武春红,李艳武,吴冰. Cs2 CO3共蒸阴极对有机电致发光器件性能的影响[J]. 发光学报, 2010, 31(5): 655-660 |
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| 作者姓名： | 侯林涛 王平 刘彭义 张靖磊 武春红 李艳武 吴冰 |
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| 作者单位： | 暨南大学,理工学院,物理系,广东,广州,510632;暨南大学,理工学院,物理系,广东,广州,510632;暨南大学,理工学院,物理系,广东,广州,510632;暨南大学,理工学院,物理系,广东,广州,510632;暨南大学,理工学院,物理系,广东,广州,510632;暨南大学,理工学院,物理系,广东,广州,510632;暨南大学,理工学院,物理系,广东,广州,510632 |
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| 基金项目： | Project supported by the Natural Science Foundation of Guangdong Province(8451063201000074); the Innovation Project for Outstanding Young Scientists of Guangdong Province(LYM08021); the Youth Foundation of Jinan University (51208031) |
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| 摘 要： | 研究了碳酸铯(Cs2CO3)掺杂8-羟基喹啉铝(Alq3)作为电子注入层对有机电致发光器件性能的影响。结果表明,与常用的Cs2CO3超薄层作电子注入层相比,Cs2CO3∶Alq3共蒸阴极对器件效率和亮度有很大提高,器件电流效率从3.1 cd/A(Cs2CO31 nm/Al)提高到6.5 cd/A(Cs2CO33%∶Alq3/Al)。器件性能的提高归因于Cs2CO3∶Alq3共蒸阴极比单层Cs2CO3阴极具有更好的电子注入能力和电子传输性能。薄膜形貌表明,共蒸阴极能有效降低Alq3表面粗糙度,有助于提高器件发光性能及寿命。
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| 关 键 词： | 有机发光 碳酸铯 电子注入 电子传输 |
| 收稿时间： | 2009-11-26 |
| 修稿时间： | 2010-01-07 |
A Novel Electron Injection Layer with Co-evaporating Tris(8-hydroxyquinoline) Aluminum Doped Cesium Carbonate in Organic Light-emitting Diodes |
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| HOU Lin-tao,WANG Ping,LIU Peng-yi,ZHANG Jing-lei,WU Chun-hong,LI Yan-wu,WU Bing. A Novel Electron Injection Layer with Co-evaporating Tris(8-hydroxyquinoline) Aluminum Doped Cesium Carbonate in Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2010, 31(5): 655-660 |
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| Authors: | HOU Lin-tao WANG Ping LIU Peng-yi ZHANG Jing-lei WU Chun-hong LI Yan-wu WU Bing |
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| Affiliation: | Department of Physics, Jinan University, Guangzhou 510632, China |
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| Abstract: | The electron injection mechanism of the effective cathode structure has been investigated,doping cesium carbonate(Cs2CO3) into the organic electron-transport layer,which significantly enhances the electron injection in comparison with an ultra-thin Cs2CO3 injection layer,with a notable superiority in both luminance and efficiency.The results show that Cs2CO3 doped tris-(8-hydroxyquinoline) aluminum(Alq3) /Al cathode exhibits better electron injection efficiency than that in Cs2CO3/Al bilayer cathode,thus a ... |
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| Keywords: | organic light-emitting diodes cesium carbonate electron injection electron transport |
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