Phenylcarbazole‐Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light‐Emitting Diodes | Zendy

Jeon Soon Ok | Zendy; Yook Kyoung Soo | Zendy; Joo Chul Woong | Zendy; Lee Jun Yeob | Zendy

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Phenylcarbazole‐Based Phosphine Oxide Host Materials For High Efficiency In Deep Blue Phosphorescent Organic Light‐Emitting Diodes

Author(s) -

Jeon Soon Ok,

Yook Kyoung Soo,

Joo Chul Woong,

Lee Jun Yeob

Publication year - 2009

Publication title -

advanced functional materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.069

H-Index - 322

eISSN - 1616-3028

pISSN - 1616-301X

DOI - 10.1002/adfm.200901274

Subject(s) - phosphorescence , materials science , dopant , phosphine oxide , oled , iridium , phosphorescent organic light emitting diode , doping , optoelectronics , diode , deep blue , quantum efficiency , photochemistry , phosphine , nanotechnology , optics , fluorescence , organic chemistry , chemistry , layer (electronics) , physics , catalysis

Highly efficient deep blue phosphorescent organic light‐emitting diodes are developed using novel phenylcarbazole‐based phosphine oxide host materials (PPO1 and PPO2). A deep blue phosphorescent dopant, tris((3,5‐difluoro‐4‐cyanophenyl)pyridine) iridium, is doped into PPO1 and PPO2 at a doping concentration of 15% and a high quantum efficiency of 18.4% is obtained with color coordinates of (0.14, 0.15).

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