Realization of improved efficient white-organic light emitting diodes with a thin electron blocking layer

Jung Soo Park, Joo Won Lee, Young Min Kim, Jai Kyeong Kim, Jin Jang, Byeoog Kwon Ju

Research output: Contribution to journalConference article

Abstract

We have fabricated white organic light emitting diodes. To obtain balanced white emission and improve the efficiency of devices, thin electron blocking layer (TEBL) was inserted between the emitting layers. We showed that the effective injection of electrons through the optimization of TEBL (α-NPD) embodied the balance of spectra and had a possibility of getting white emission. In a device with 0.3 nm α-NPD, it had a maximum power efficiency of 3.80 lm/w at 250 cd/m2, a luminance of 1200 cd/m2 at 100 mA/cm2 , and the CIE coordinates were (0.353, 0.357).

Original languageEnglish
Pages (from-to)1294-1296
Number of pages3
JournalProceedings of International Meeting on Information Display
Volume2
Publication statusPublished - 2006
Event5th International Meeting on Information Display - Seoul, Korea, Republic of
Duration: 2005 Jul 192005 Jul 23

ASJC Scopus subject areas

  • Engineering(all)

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