| 高效率金属微腔OLEDs性能 |
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| 引用本文： | 谢泽锋,袁永波,陈树明,周翔. 高效率金属微腔OLEDs性能[J]. 发光学报, 2008, 29(1): 37-40 |
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| 作者姓名： | 谢泽锋 袁永波 陈树明 周翔 |
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| 作者单位： | 中山大学光电材料与技术国家重点实验室, 显示材料与技术广东省重点实验室, 广东, 广州, 510275 |
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| 基金项目： | 广东省自然科学基金 , 广东省科技计划 |
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| 摘 要： | 以半透明Ag膜为阳极出光面,利用MoO3作为空穴注入层,在普通玻璃衬底上制备了底发射微腔OLEDs器件,其中微腔由接近全反射厚度为100nm的Al阴极和反射率约为50%左右厚度为22nm的半透明Ag阳极构成,由于采用了有效的空穴和电子注入层MoO3和LiF,以Alq3作为发光材料,器件的起亮电压为2.5V,在10V外加电压下正向亮度超过了15000cd/m2,最大电流效率接近6cd/A,大约是制备于ITO玻璃衬底阳极上的常规器件的两倍(3.2cd/A),并研究了光谱窄化以及随观测角度变化的微腔效应。
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| 关 键 词： | OLEDs 高效率 微腔 |
| 文章编号： | 1000-7032（2008）01-0037-04 |
| 收稿时间： | 2007-08-25 |
| 修稿时间： | 2007-12-24 |
Study on Metal Microcavity OLEDs with Improved Efficiency |
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| XIE Ze-feng,YUAN Yong-bo,CHEN Shu-ming,ZHOU Xiang. Study on Metal Microcavity OLEDs with Improved Efficiency[J]. Chinese Journal of Luminescence, 2008, 29(1): 37-40 |
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| Authors: | XIE Ze-feng YUAN Yong-bo CHEN Shu-ming ZHOU Xiang |
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| Affiliation: | State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, China |
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| Abstract: | The microcavity OLED with a 100 nm-thick highly reflective Al top cathode and a 22 nm-thick semitrans parent Ag bottom anode on a glass substrate was fabricated. With MoO3 and LiF as efficient hole and electron injection layers, respectively, the microcavity OLED show a turn on voltage of 2.5 V and a high luminance above 15 000 cd/m2 at 10 V, with a maximum efficiency of around 6 cd/A, which is 2 times that of the conventional OLEDs. The optical characteristics of the microcavity, such as narrowed and viewing angle dependent spectra, were examined. |
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| Keywords: | OLEDs high efficiency microcavity |
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