[OLEDp1] OLED poster

[OLEDp1-11] Soluble host materials with ortho-phenylene group for blue phosphorescent devices

Hui Jae Choi¹, Ohyoung Kim¹, Chil Won Lee¹, *Byung Doo Chin¹ (1. Dankook University (Korea))

Keywords:Blue Phosphorescence, Soluble Host, Ortho-phenyl-mCP, Morphology, Efficiency

Blue phosphorescent organic light-emitting diodes (OLED) were prepared with the host materials designed for solution process. 1,3-bis(carbazole-9-yl)benzene as the core structure with various ortho-phenyl groups between the carbazole moieties were prepared for the purpose of reducing symmetry and planarity of the molecules, hereby improving the solubility and device efficiency.