| abstract |
In the general structure: B-S-A-S-B OLED compound, the rod-shaped nucleus A contains a fused aromatic ring structure, which is fused with at least one further fluorene ring structure. The fluorene ring system constituting the condensed aromatic structure is substituted at the 9-position, and the 9-position of the fluorene is not sensitive to oxidation. OLED compounds. [Selection] Figure 1 |