Organic light-emitting diodes containing multilayers of organic single crystals

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Double-heterostructure (DH) organic light-emitting diodes (OLEDs) with thick carrier transport layers based on organic single crystals have been fabricated. Although the total thickness of the organic layers (∼1.4 μm) is one order of magnitude greater than that of conventional thin-film OLEDs, a current density of 100 mA/ cm2 was achieved at 19 V. The major advantage of the single crystal-based DH-OLED was that a very low applied electric field (∼ 104 V/cm) was required for the onset of carrier injection and transport, because of the high carrier mobilities of the single crystal layers.

Original languageEnglish
Article number053301
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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