| MEH-PPV/ZnO纳米晶无机有机复合电致发光器件的研究 |
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| 引用本文： | 李海玲,王永生,滕枫,徐征.MEH-PPV/ZnO纳米晶无机有机复合电致发光器件的研究[J].光谱学与光谱分析,2004,24(10):1172-1175. |
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| 作者姓名： | 李海玲 王永生 滕枫 徐征 |
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| 作者单位： | 北京交通大学光电子技术研究所,信息存储、显示与材料开放实验室,北京,100044;北京交通大学光电子技术研究所,信息存储、显示与材料开放实验室,北京,100044;北京交通大学光电子技术研究所,信息存储、显示与材料开放实验室,北京,100044;北京交通大学光电子技术研究所,信息存储、显示与材料开放实验室,北京,100044 |
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| 基金项目： | 教育部高校优秀青年教师奖励计划，“973”计划项目 (2 0 0 3CD31 4 70 7)资助 |
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| 摘 要： | 以Ⅱ一Ⅵ族无机半导体ZnO纳米颗粒为电子传输层，MEH-PPV为空穴传输层兼发光层，得到的电致发光器件比单层MEH-PPV器件的发光亮度和效率都明显提高。器件结构为ITO／MEH-PPV／ZnO／Al的电致发光光谱同单层PPV器件的光谱出现了不同，在620nm处出现了一个小的发光峰，应该是ZnO的发光。另外，双层结构器件的启亮电压由单层器件的9V降到了4V左右。由I-V曲线及发光光谱可判断出发光区域应在MEH-PPV／ZnO界面处，并且复合区域可能随着电压的变化而变化。
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| 关 键 词： | 异质结 电致发光 聚合物 ZnO纳米颗粒 |
| 文章编号： | 1000-0593(2004)10-1172-04 |
| 修稿时间： | 2003年1月6日 |
Electroluminescence Property of MEH-PPV/ZnO Nano-Crystal Structure |
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| LI Hai-ling,WANG Yong-sheng,TENG Feng,XU ZhengInstitute of Optoelectronic Technology Beijing Jiaotong University,Key Lab of Material for Information Storage and Display,Beijing ,China.Electroluminescence Property of MEH-PPV/ZnO Nano-Crystal Structure[J].Spectroscopy and Spectral Analysis,2004,24(10):1172-1175. |
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| Authors: | LI Hai-ling WANG Yong-sheng TENG Feng XU ZhengInstitute of Optoelectronic Technology Beijing Jiaotong University Key Lab of Material for Information Storage and Display Beijing China |
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| Institution: | Institute of Optoelectronic Technology Beijing Jiaotong University, Key Lab of Material for Information Storage and Display, Beijing 100044, China. |
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| Abstract: | A new structure with II-VI nano-crystal ZnO film as the electron transport layer and MEH-PPV as the hole transport layer and emitting layer was fabricated. The new structure's brightness and efficiency were improved markedly compared with that of the single MEH-PPV layer structure. And a new peak at 620 nm was found in the ITO/MEH-PPV/ZnO/Al structure's electroluminescence spectrum, which should resulted from ZnO layer. In addition, the turning-on voltage of the two-layer structure decreased from 9 V of the single layer structure to 4 V. From the I-V curve, the authors concluded that the emitting area was around the interface of MEH-PPV/ZnO and the combination area could shift with changing the voltage. |
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| Keywords: | Heterojunction Electroluminescence Polymer ZnO nanoparticles |
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