Mixing effect of hole-injecting and hole-transporting materials on the performance and lifetime of organic light-emitting devices

Youngkyoo Kim; Eonseok Oh; Hyuntaek Lim; Chang-Sik Ha

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Mixing effect of hole-injecting and hole-transporting materials on the performance and lifetime of organic light-emitting devices

机译：空穴注入和空穴传输材料的混合效应对有机发光器件的性能和寿命的影响

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A hole-injecting-transporting layer (HITL), which was prepared by in situ mixing hole-injecting and hole-transporting (HTM) materials upon evaporating in vacuum, has been attempted to reduce the number of organic layers in organic light-emitting devices (OLEDs). OLEDs with HITLs showed lower current density and luminance than those with hole-injecting layer only or hole-transporting layer only, which is attributed to the charge transport change controlled by the HITL nanomorphology made upon mixing. The highest efficiency and the longest lifetime were achieved for the OLED having the HITL with 25% HTM content, while the OLED with HTM only exhibited very poor device lifetime despite the highest efficiency.

机译：已尝试通过在真空中蒸发后原位混合空穴注入和空穴传输（HTM）材料而制备的空穴注入传输层（HITL），以减少有机发光器件中的有机层数量。（OLED）。具有HITL的OLED的电流密度和亮度低于仅具有空穴注入层或仅具有空穴传输层的OLED，这归因于混合时通过HITL纳米形态控制的电荷传输变化。具有HITL且HTM含量为25％的OLED达到了最高效率和最长的使用寿命，而具有HTM的OLED尽管效率最高，但仅表现出非常差的器件寿命。

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来源
《Applied Physics Letters》 |2006年第4期|p.043504.1-043504.3|共3页
作者
Youngkyoo Kim; Eonseok Oh; Hyuntaek Lim; Chang-Sik Ha;
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作者单位

Experimental Solid State Physics Group, Department of Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BW, United Kingdom;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类应用物理学;计量学;
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4. Improved organic light-emitting devices with tunable IV by inserting a hole-blocking layer between hole-injecting layer and hole-transporting layer [C] . Y. Divayana, B. J. Chen, X. W. Sun, European Solid-State Device Research Conference . 2006

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Mixing effect of hole-injecting and hole-transporting materials on the performance and lifetime of organic light-emitting devices

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