| 阴极蒸镀和隔离层对有机发光二极管性能的影响 |
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| 引用本文： | 李艳武. 阴极蒸镀和隔离层对有机发光二极管性能的影响[J]. 光电子．激光, 2010, 21(5): 672-674 |
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| 作者姓名： | 李艳武 |
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| 作者单位： | 暨南大学物理系,广东,广州,510632;暨南大学物理系,广东,广州,510632;暨南大学物理系,广东,广州,510632;暨南大学物理系,广东,广州,510632 |
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| 基金项目： | 广东省自然科学基金资助项目(06025173) |
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| 摘 要： | 制备了简单结构的有机发光二极管(OLED)ITO/NPB/Alq3/Al/Ag。实验结果表明,快速蒸镀法制备的Ag阴极越厚,器件性能越差,而慢速蒸镀200nmAg阴极时器件性能也较差。在Alq3与Al阴极之间插入BCP/C60/LiF隔离层后,即使快速蒸镀法制备的Ag厚达280nm,器件的最大电流密度、最大亮度和最大电流效率仍分别高达248.6mA/cm2、5380.7cd/m2和3.52cd/A。隔离层不仅保护NPB和Alq3基本不被玻璃化,还很好地与Alq3和Al阴极匹配,大大提高了器件性能。
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| 关 键 词： | 有机发光二极管(OLED) 阴极蒸镀 隔离层 玻璃化温度 |
Influence of cathode deposition and the spacing layer on performance of organic light-emitting diodes |
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| LI Yan-wu. Influence of cathode deposition and the spacing layer on performance of organic light-emitting diodes[J]. Journal of Optoelectronics·laser, 2010, 21(5): 672-674 |
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| Authors: | LI Yan-wu |
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| Affiliation: | LI Yan-wu,LIU Peng-yi,HOU Lin-tao,WU Bing(Department of Physics,Jinan University,Guangzhou 510632,China) |
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| Abstract: | Organic light-emitting diodes(OLEDs) with a structure of ITO/NPB/Alq3/Al/Ag are prepared.The experimental results show that when Ag is deposited rapidly and the Ag is thicker,the device performance is worse.And when a 200 nm Ag is deposited slowly,the device performance is also poor.However,after inserting a BCP/C60/LiF spacer layer between Alq3 and Al cathode,even if there is 280 nm Ag deposited rapidly,the maximum current density,maximum brightness and maximum current efficiency of the device are still as... |
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| Keywords: | organic light-emitting diode(OLED) cathode evaporation spacer layer glass transition temperature |
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