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Tae-Hee Han, Mi-Ri Choi, Seong-Hoon Woo, Sung-Yong Min, Chang-Lyoul Lee and Tae-Woo Lee Molecularly Controlled Interfacial Layer Strategy Toward Highly Efficient Simple-Structured Organic Light-Emitting Diodes Advanced Materials 24

Version of Record online: 17 FEB 2012 | DOI: 10.1002/adma.201104316

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A highly efficient simplified organic light-emitting diode (OLED) with a molecularly controlled strategy to form near-perfect interfacial layer on top of the anode is demonstrated. A self-organized polymeric hole injection layer (HIL) is exploited increasing hole injection, electron blocking, and reducing exciton quenching near the electrode or conducting polymers; this HIL allows simplified OLED comprised a single small-molecule fluorescent layer to exhibits a high current efficiency (∼20 cd/A).

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