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Molecularly Controlled Interfacial Layer Strategy Toward Highly Efficient Simple‐Structured Organic Light‐Emitting Diodes
Author(s) -
Han TaeHee,
Choi MiRi,
Woo SeongHoon,
Min SungYong,
Lee ChangLyoul,
Lee TaeWoo
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201104316
Subject(s) - oled , materials science , anode , optoelectronics , layer (electronics) , diode , exciton , electrode , polymer , quenching (fluorescence) , fluorescence , light emitting diode , nanotechnology , optics , composite material , chemistry , physics , quantum mechanics
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).