| 利用LiF/Al作为电极的有机电致发光器件 |
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| 引用本文： | 李传南,肖步文,侯晶莹,刘式墉. 利用LiF/Al作为电极的有机电致发光器件[J]. 光子学报, 2001, 30(1): 86-89 |
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| 作者姓名： | 李传南 肖步文 侯晶莹 刘式墉 |
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| 作者单位： | 集成光电子学国家重点实验室，吉林大学电子工程系，长春 130023 |
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| 基金项目： | 国家自然科学基金!资助项目 (编号 :599730 0 7)，国家“863”计划项目资助! (编号 :863-30 7-0 5-0 5( 0 2 ) ) |
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| 摘 要： | 本文报道了利用LiF/Al作为负电极的有机电致发光器件,器件结构为ITO/TPD/Alq3/LiF/Al,LiF层的加入增强了电子注入,当其厚度为0.4nm时,器件的性能最好,与单层Al和Mg/Al电极的同类器件相比,此时器件的开启电压由Al电极时的4.3V和Mg/Al电极时的3.0V降低到了2.0V,器件的最大亮度分别由4000cd/m2、14000cd/m2提高到19600cd/m2,器件的发光效率也分别增加了5倍和2倍,达到2.66lm/W.
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| 关 键 词： | 有机电致发光器件 LiF/Al电极 |
| 收稿时间： | 2000-04-18 |
| 修稿时间： | 2000-04-18 |
FABRICATION OF ORGANIC LIGHT-EMITTING DEVICES USING LiF/Al AS CATHODE |
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| Li Chuannan,Xiao Buwen,Hou Jingying,Liu Shiyong. FABRICATION OF ORGANIC LIGHT-EMITTING DEVICES USING LiF/Al AS CATHODE[J]. Acta Photonica Sinica, 2001, 30(1): 86-89 |
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| Authors: | Li Chuannan Xiao Buwen Hou Jingying Liu Shiyong |
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| Affiliation: | Li Chuannan,Xiao Buwen,Hou Jingying,Liu Shiyong Department of Electronics Engineering & National Laboratory of Integrated Optoelectronics,Jilin University,Changchun 130023 |
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| Abstract: | It is reported the fabrication of organic light-emitting devices(OLEDs) using LiF/Al as cathode.The structure of this devices is ITO/TPD/Alq3/LiF/Al,and the insertion of the ultra-thin LiF layer enhanced the electron injection in this device.As a result,when the thickness of the LiF layer is optimized 0.4nm,the OLEDs′properties show best,its maximum brightness is 19600 cd/m2(17V),while the devices with Al cathode or Mg/Al cathode exihibit only 4000 cd/m2(22V),14000 cd/m2(19V) respectively.And the operating voltage for devices with LiF/Al cathode is lower (2.0V) than those of devices with Al cathode (4.3V) or Mg/Al cathode (3.0V).Its luminescent efficiency is 5 and 2 times than that of devices with Al cathode or Mg/Al cathode. |
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| Keywords: | Organic light emitting device (OLED) LiF/Al cathode |
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