Efficiency improvement of Alq3-based OLEDs using thin alkali compound films as an electron pump layer

Young Min Kim, Joo Won Lee, Jung Soo Park, Jai Kyeong Kim, Man Young Sung, Byeong Kwon Ju, Min Ho Lee, Seung Kill Yun

Research output: Contribution to journalConference articlepeer-review


Highly efficient and bright organic light-emitting diodes (OLEDs) have been realized using thin alkali compound films (TACFs) as the electron pump layer (EPL) in the tris-(8-hydroxyquinoline) aluminum (Alq3) with conventional organic layers. By comparing the performance of the device as a function of position with the EPL, we propose the optimal position of the EPL in Alq3. Experimental results show that the efficiency of device with EPL is four times higher than that without.

Original languageEnglish
Pages (from-to)404-407
Number of pages4
JournalSID Conference Record of the International Display Research Conference
Publication statusPublished - 2005
Event25th Internatioanl Display Research Conference, EURODISPLAY 2005 - Edinburgh, SCO, United Kingdom
Duration: 2005 Sep 202005 Sep 22

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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