| 光谱学与光谱分析 |
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| Electroluminescence Property of MEH-PPV／ZnO Nano-Crystal Structure |
| LI Hai-ling，WANG Yong-sheng，TENG Feng，XU Zheng |
| 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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Received: 2003-01-06
Accepted: 2003-06-26
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Corresponding Authors:
LI Hai-ling
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| Cite this article: |
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LI Hai-ling,WANG Yong-sheng,TENG Feng, et al. Electroluminescence Property of MEH-PPV／ZnO Nano-Crystal Structure [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(10): 1172-1175.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I10/1172 |
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