| 电子传输层厚度对LiBq4蓝色有机电致发光器件的影响 |
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| 引用本文： | 吴有智,郑新友,朱文清,张步新,蒋雪茵,张志林,许少鸿. 电子传输层厚度对LiBq4蓝色有机电致发光器件的影响[J]. 半导体光电, 2002, 23(4): 253-256,276. DOI: 10.3969/j.issn.1001-5868.2002.04.010 |
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| 作者姓名： | 吴有智 郑新友 朱文清 张步新 蒋雪茵 张志林 许少鸿 |
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| 作者单位： | 上海大学,嘉定校区材料科学系,上海,201800 |
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| 基金项目： | 国家高技术研究发展计划(863计划);2001AA313070; |
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| 摘 要： | 制备了以LiBq4为发光层,结构为ITO/CuPc/TPD/LiBq4/Alq3/LiF/Al的器件.器件的电致发光(EL)光谱与LiBq4薄膜的光致发光(PL)光谱相同,峰值波长均为492nm.改变电子传输层Alq3的厚度时,器件的电流-电压特性及发光光谱随之发生变化,当电子传输层的厚度为5nm时,既可以避免电子传输层的发光,又可以降低器件的工作电压.
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| 关 键 词： | LiBq4 有机电致发光 工作电压 |
| 文章编号： | 1001-5868(2002)04-0253-04 |
| 修稿时间： | 2002-03-31 |
Effect of Thickness of Electron Transporting Layer on Blue Organic Electroluminescent Device Using LiBq4 as an Active Layer |
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| WU You-zhi,ZHENG Xin-you,ZHU Wen-qing,ZHANG Bu-xin,JIANG Xue-yin,ZHANG Zhi-lin,XU Shao-hong. Effect of Thickness of Electron Transporting Layer on Blue Organic Electroluminescent Device Using LiBq4 as an Active Layer[J]. Semiconductor Optoelectronics, 2002, 23(4): 253-256,276. DOI: 10.3969/j.issn.1001-5868.2002.04.010 |
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| Authors: | WU You-zhi ZHENG Xin-you ZHU Wen-qing ZHANG Bu-xin JIANG Xue-yin ZHANG Zhi-lin XU Shao-hong |
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| Abstract: | Devices with the structure of ITO/CuPc/TPD/LiBq_4/Alq_3/LiF/Al,LiBq_4 used as an active layer,were prepared. Electroluminescence (EL) spectra of the devices are very similar to photoluminescence (PL) spectrum of the single deposited LiBq_4 film with peak wavelength at 492 nm.The current-voltage characteristics and the luminescence of the devices have the dependence on thickness of the electron transporting layer (ETL) Alq_3.We found that the operating voltage of the device may be reduced without emergence of luminescence of ETL as the thickness of the ETL equals 5 nm. |
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| Keywords: | LiBq_4 organic electroluminescence operating voltage |
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