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Highly efficient and stable organic light-emitting diodes employing MoO3-doped perylene-3, 4, 9, 10-tetracarboxylic dianhydride as hole injection layer

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Abstract

We report highly efficient and stable organic light-emitting diodes (OLEDs) with MoO3-doped perylene-3, 4, 9, 10-tetracarboxylic dianhydride (PTCDA) as hole injection layer (HIL). A green OLED with structure of ITO/20 wt% MoO3: PTCDA/NPB/Alq3/LiF/Al shows a long lifetime of 1012 h at the initial luminance of 2000 cd/m2, which is 1.3 times more stable than that of the device with MoO3 as HIL. The current efficiency of 4.7 cd/A and power efficiency of 3.7 lm/W at about 100 cd/m2 have been obtained. The charge transfer complex between PTCDA and MoO3 plays a decisive role in improving the performance of OLEDs.

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Authors and Affiliations

  1. Key Laboratory of Semiconductor Materials Science, Chinese Academy of Sciences, Beijing, 100083, China

    Linsen Li & Min Guan

  2. Material Science Center, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China

    Guohua Cao, Yiyang Li & Yiping Zeng

Authors
  1. Linsen Li
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  2. Min Guan
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  3. Guohua Cao
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  4. Yiyang Li
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  5. Yiping Zeng
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Correspondence to Min Guan or Yiping Zeng.

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Li, L., Guan, M., Cao, G. et al. Highly efficient and stable organic light-emitting diodes employing MoO3-doped perylene-3, 4, 9, 10-tetracarboxylic dianhydride as hole injection layer. Appl. Phys. A 99, 251–254 (2010). https://doi.org/10.1007/s00339-009-5511-9

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  • DOI: https://doi.org/10.1007/s00339-009-5511-9

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