| 利用KCl／Al作为电极的有机电致发光器件 |
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| 引用本文： | 杨惠山.利用KCl／Al作为电极的有机电致发光器件[J].泉州师范学院学报,2008,26(6):34-36. |
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| 作者姓名： | 杨惠山 |
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| 作者单位： | 泉州师范学院理工学院,福建,泉州,362000 |
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| 基金项目： | 福建省自然科学基金项目，福建省教育厅A类科研项目，泉州市科技局基金项目 |
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| 摘 要： | 制备了利用KCl／Al作为负电极的有机电致发光器件，器件结构为IT0／NPB／Alq／KCl／Al，KCl层的加入增强了电子注入，当其厚度为1．5nm时，器件的性能最好．与单层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5V降低到了2．5V。器件的亮度在11V时由231cd／m^2提高到15070cd／m^2，器件的发光效率也增加了10倍，达到2．79cd／A．
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| 关 键 词： | 有机电致发光 KCI/A1电极 效率 亮度 |
Fabrication of Organic Light-emitting Devices Using KCl/Al as Cathode |
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| YANG Hui-shan.Fabrication of Organic Light-emitting Devices Using KCl/Al as Cathode[J].Journal of Quanzhou Normal College,2008,26(6):34-36. |
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| Authors: | YANG Hui-shan |
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| Institution: | YANG Hui-shan (School of Science, Quanzhou Normal University, Fujian 362000, China) |
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| Abstract: | Fabricating an organic light-emitting device with high efficiency and brightness thin KCl/Al as cathode.The structure of the devices is ITO/NPB/Alq/ KCl/Al,and the insertion of the ultra-thin KCl layer enhances the electron injection in this device.As a result,when the thickness of the KCl layer is 1.5 nm optimized,the OLEDs' properties show best,its maximum brightness is 15 070 cd/m2 at 11 V,while the device with Al cathode exihibit only 231 cd/m2.And the operating voltage for devices with KCl/Al cathode is lower(2.5 V) than those of devices with Al cathode(5.0 V).Its luminescent efficiency is 10 times than that of devices with Al cathode. |
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| Keywords: | organic light-emitting devices KCl/Al cathode efficiency brightness |
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