Design of Hole Blocking Layer with Electron Transport Channels for High Performance Polymer Light-Emitting Diodes

Design of Hole Blocking Layer with Electron Transport Channels for High Performance Polymer Light-Emitting Diodes

A novel dual‐functional composite layer composed of a high ionization potential nonconjugated polymer or conjugated molecular material and an inorganic salt of a low work function metal is demonstrated. The composite provides superior hole blocking along with promising electron transport capability...

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Veröffentlicht in:Advanced materials (Weinheim) 2008-05, Vol.20 (10), p.1982-1988
Hauptverfasser: Hsiao, Chung-Chin, Hsiao, An-En, Chen, Show-An
Format: Artikel
Sprache:eng
Schlagworte:
Charge transport
Electron transport
Hole transport
Organic electronics
Polymer light-emitting diodes
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Zusammenfassung:A novel dual‐functional composite layer composed of a high ionization potential nonconjugated polymer or conjugated molecular material and an inorganic salt of a low work function metal is demonstrated. The composite provides superior hole blocking along with promising electron transport capability and results in good device performance for two model electroluminescent polymers, PFO and MEH‐PPV.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200702150