P‐133:  Distinguished Student Paper:  Highly Efficient Deep Blue Organic Light‐Emitting Device | Zendy

Lee MengTing | Zendy; Liao ChiHung | Zendy; Tsai ChihHung | Zendy; Chen Chin H. | Zendy

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P‐133: Distinguished Student Paper: Highly Efficient Deep Blue Organic Light‐Emitting Device

Author(s) -

Lee MengTing,

Liao ChiHung,

Tsai ChihHung,

Chen Chin H.

Publication year - 2005

Publication title -

sid symposium digest of technical papers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.351

H-Index - 44

eISSN - 2168-0159

pISSN - 0097-966X

DOI - 10.1889/1.2036569

Subject(s) - oled , common emitter , luminance , quantum efficiency , optoelectronics , dopant , materials science , fluorescence , layer (electronics) , optics , doping , nanotechnology , physics

We report a highly efficient deep blue organic light‐emitting device (OLED) incorporating a novel composite hole transport layer (c‐HTL) and an emitter based on the new fluorescent dopant BD1 in the stable host MADN which achieved a luminance efficiency of 5.4 cd/A with a Commission Internationale d'Eclairage (CIE x, y ) of (0.14, 0.13) and an external quantum efficiency of 5.1% at 20 mA/cm 2 and 6.8 V. We attribute the increased device efficiency to an improved balance between hole and electron currents arriving at the recombination zone.

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