International Display Workshops Incorporated Association

10:40 AM - 1:10 PM

[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))

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.