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

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/Alq(3)/LiF/Al shows a long lifetime of 1012 h at the initial luminance of 2000 cd/m(2), 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/m(2) 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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Made available in DSpace on 2010-04-28T14:06:49Z (GMT). No. of bitstreams: 1 Highly efficient and stable organic light-emitting diodes employing MoO3-doped perylene-3, 4, 9, 10-tetracarboxylic dianhydride as hole injection layer.pdf: 275755 bytes, checksum: 23880dd1d95aa6e296c42b21860be2c2 (MD5) Previous issue date: 2010

National Natural Science Foundation of China (NNSFC) 60876043 Chinese Academy of Sciences IS-CAS2008T11

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National Natural Science Foundation of China (NNSFC) 60876043 Chinese Academy of Sciences IS-CAS2008T11