911397-26-7Relevant academic research and scientific papers
A dibenzofuran-based host material for blue electrophosphorescence
Vecchi, Paul A.,Padmaperuma, Asanga B.,Qiao, Hong,Sapochak, Linda S.,Burrows, Paul E.
, p. 4211 - 4214 (2007/10/03)
(Chemical Equation Presented) Dibenzofuran (DBF) is converted to a vacuum-sublimable, electron-transporting host material via 2,8-substitution with diphenylphosphine oxide moieties. Close π-π stacking and the inductive influence of P=O moieties impart favorable electron-transport properties without lowering the triplet energy. A maximum external quantum efficiency of 10.1% and luminance power efficiency of 25.9 lm/W are realized using this material as the host for the blue-green electrophosphorescent molecule, iridium(III) bis(4,6-(di-fluorophenyl)pyridinato-N,C2′)picolinate (Flrpic).
