Improvement of Electroluminescence Performance of Organic Light-Emitting Diodes with a Liquid-Emitting Layer by Introduction of Electrolyte and a Hole-Blocking Layer

Improvement of Electroluminescence Performance of Organic Light-Emitting Diodes with a Liquid-Emitting Layer by Introduction of Electrolyte and a Hole-Blocking Layer

Organic light‐emitting diodes containing a liquid emitting layer that exhibit improved external electroluminescence quantum efficiency (ΦEL) and maximum luminance are presented. Doping the liquid emitting layer with an electrolyte significantly decreases the turn‐on voltage for electroluminescence....

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Veröffentlicht in:Advanced materials (Weinheim) 2011-02, Vol.23 (7), p.889-893
Hauptverfasser: Hirata, Shuzo, Kubota, Korefumi, Jung, Heo Hyo, Hirata, Osamu, Goushi, Kenichi, Yahiro, Masayuki, Adachi, Chihaya
Format: Artikel
Sprache:eng
Schlagworte:
Electrical Equipment and Supplies
Electricity
electroluminescence
electrolytes
Electrolytes - chemistry
hole-blocking layers
Light
liquid semiconductors
Luminescent Measurements
Organic Chemicals - chemistry
organic light-emitting diodes
Titanium - chemistry
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Zusammenfassung:Organic light‐emitting diodes containing a liquid emitting layer that exhibit improved external electroluminescence quantum efficiency (ΦEL) and maximum luminance are presented. Doping the liquid emitting layer with an electrolyte significantly decreases the turn‐on voltage for electroluminescence. Insertion of a TiO2 hole‐blocking layer between the liquid emitting layer and indium tin oxide cathode improves ΦEL.
ISSN:0935-9648
1521-4095
1521-4095
DOI:10.1002/adma.201003505