Molecularly Controlled Interfacial Layer Strategy Toward Highly Efficient Simple-Structured Organic Light-Emitting Diodes

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 re...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-03, Vol.24 (11), p.1487-1493
Main Authors: Han, Tae-Hee, Choi, Mi-Ri, Woo, Seong-Hoon, Min, Sung-Yong, Lee, Chang-Lyoul, Lee, Tae-Woo
Format: Article
Language:English
Subjects:
exciton quenching
hole injection layer
Light
Materials Testing
Membranes, Artificial
Molecular Structure
organic light-emitting diodes
Polymers - chemical synthesis
Polymers - chemistry
simple-structure
Surface Properties
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Summary: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).
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201104316