Modified N,N′-Dicarbazolyl-3,5-benzene as a High Triplet Energy Host Material for Deep-Blue Phosphorescent Organic Light-Emitting Diodes

Modified N,N′-Dicarbazolyl-3,5-benzene as a High Triplet Energy Host Material for Deep-Blue Phosphorescent Organic Light-Emitting Diodes

Deeply phosphorescent device: A high efficiency deep‐blue phosphorescent organic light‐emitting diode was developed using a high triplet energy host material with carbazole and diphenylphosphine oxide units. A high quantum efficiency of 22.4 % with a color coordinate of (0.14,0.17) was achieved (see...

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Veröffentlicht in:Chemistry : a European journal 2011-10, Vol.17 (41), p.11415-11418
Hauptverfasser: Cho, Yong Joo, Lee, Jun Yeob
Format: Artikel
Sprache:eng
Schlagworte:
bipolar host
Carbazoles
Chemistry
Colors (materials)
cyclic voltammetry
density functional calculations
Devices
Energy use
high triplet energy
host-guest chemistry
luminescence
Organic light-emitting diodes
Oxides
Phosphorescence
Quantum efficiency
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Zusammenfassung:Deeply phosphorescent device: A high efficiency deep‐blue phosphorescent organic light‐emitting diode was developed using a high triplet energy host material with carbazole and diphenylphosphine oxide units. A high quantum efficiency of 22.4 % with a color coordinate of (0.14,0.17) was achieved (see figure).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201101095