Details

Autor(en) / Beteiligte

• Lin, Ming-Shiang
• Chi, Liang-Chen
• Chang, Hong-Wei
• Huang, Yi-Hsiang
• Tien, Kun-Cheng
• Chen, Chung-Chia
• Chang, Chih-Hao
• Wu, Chung-Chih
• Chaskar, Atul
• Chou, Shu-Hua
• Ting, Hao-Chun
• Wong, Ken-Tsung
• Liu, Yi-Hong
• Chi, Yun

Titel

A diarylborane-substituted carbazole as a universal bipolar host material for highly efficient electrophosphorescence devicesElectronic supplementary information (ESI) available: DSC plot of CMesB. CCDC reference numbers 834985. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c1jm13323c

Erscheinungsjahr

2011-12

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Recently bipolar phosphorescent host materials have attracted wide attention since they can achieve better charge balance and hence better device performance. In this work, we report the synthesis and physical properties of a novel bipolar host material containing the dimesityl borane/carbazole hybrid, CMesB . With a high triplet energy, CMesB is considered a promising universal host material and has been applied to phosphorescent OLEDs of various colors. Red/green/blue/white (RGBW) OLEDs based on CMesB all show high external quantum efficiencies (20.7% for red, 20.0% for green, 16.5% for blue, and 15.7% for white) at practical brightnesses. The results indicate that the bipolar host CMesB with high triplet energy has high potential in manufacturing RGBW OLEDs for display or lighting applications. A novel bipolar molecule CMesB can serve as a universal host material for efficient red/green/blue/white phosphorescent OLEDs.