POLYANILINE AS A TRANSPARENT ELECTRODE FOR POLYMER LIGHT-EMITTING-DIODES - LOWER OPERATING VOLTAGE AND HIGHER EFFICIENCY
POLYANILINE AS A TRANSPARENT ELECTRODE FOR POLYMER LIGHT-EMITTING-DIODES - LOWER OPERATING VOLTAGE AND HIGHER EFFICIENCY
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DOI：
10.1063/1.110853
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发表时间：
1994-03-07
影响因子：
4
通讯作者：
HEEGER, AJ
中科院分区：
文献类型：
--
作者：
YANG, Y;HEEGER, AJ
我们证明，通过使用聚苯胺（PANI）或（PANI）与氧化铟/锡（ITO）的组合作为聚合物发光二极管的透明阳极，以聚[2-甲氧基-5-(2'-乙基己氧基)-1, 4-亚苯基亚乙烯基]（MEH-PPV）作为有源层，可以显着提高器件性能，工作电压可降低约30%-50%，量子效率可提高相对于单独使用 ITO 作为空穴注入阳极的器件，约 30%-40%。 PANI/MEH-PPV 界面处的势垒高度估计约为 0.08-0.12 eV，大约是 ITO/MEH-PPV 界面处的势垒高度的一半。
We demonstrate that by using polyaniline (PANI) or a combination of (PANI) and indium/tin oxide (ITO) as the transparent anode of a polymer light-emitting diode with poly[2-methoxy-5-(2'-ethylhexyloxy)-1, 4-phenylene vinylene] (MEH-PPV), as the active layer, device performance can be significantly improved, The operating voltage can be reduced by approximately 30%-50% and the quantum efficiency can be increased by approximately 30%-40% with respect to the devices using ITO alone as the hole-injecting anode. The barrier height at the PANI/MEH-PPV interface is estimated to be approximately 0.08-0.12 eV, approximately half of that at the ITO/MEH-PPV interface.