High T sub(g) hole transport polymers for the fabrication of bright and efficient organic light-emitting devices with an air-stable cathode

High T sub(g) hole transport polymers for the fabrication of bright and efficient organic light-emitting devices with an air-stable cathode

An organic electroluminescent device with a luminous efficiency of 20 Im/W, at 14 cd/m super(2), and an external quantum efficiency of 4.6% has been fabricated using a high T sub(g) hole transport polymer, a small molecule emission layer, and a LiF/Al cathode. The device quantum efficiency can be in...

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Veröffentlicht in:IEEE journal of quantum electronics 2000-01, Vol.36 (1)
Hauptverfasser: Jabbour, GE, Shaheen, SE, Morrell, M M, Anderson, J D, Lee, P, Thayumanavan, S, Barlow, S, Bellmann, E, Grubbs, R H, Kippelen, B, Marder, S, Armstrong, N R, Peyghambarian, N
Format: Artikel
Sprache:eng
Schlagworte:
Cathodes
Devices
Encapsulation
Polymers
Quantum efficiency
Transport
Tuning
Voltage
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Zusammenfassung:An organic electroluminescent device with a luminous efficiency of 20 Im/W, at 14 cd/m super(2), and an external quantum efficiency of 4.6% has been fabricated using a high T sub(g) hole transport polymer, a small molecule emission layer, and a LiF/Al cathode. The device quantum efficiency can be increased by tuning the ionization potential of the hole-transport moieties. When tested under pulsed voltage mode, in air at room temperature, and without any encapsulation, the device showed a high peak brightness of 4.410 super(6) cd/m super(2) at 100 A/cm super(2) and an efficiency of 4.4 cd/A
ISSN:0018-9197
DOI:10.1109/3.817633