Syntheses and Structures of Novel Heteroarene-Fused Coplanar π-Conjugated Chromophores
摘要:
We have synthesized a series of novel coplanar chromophores in which heteroarenes, namely, thiophene, benzothiophene, and carbazole, were fused to neighboring phenylene ring(s) through intramolecular annulation via sp(3)-hybridized carbon atoms bearing two p-tolyl groups as peripheral substituents. The molecular configurations of the d-conjugated backbones were determined by X-ray crystallographic analysis; the heteroarene-fused molecular frameworks of these novel molecules exhibit nearly coplanar conformations.
Non-fullerene organicsolarcells (OSCs) have attracted tremendous interest and made an impressive breakthrough, largely due to advances in high-performance smallmolecule acceptors (SMAs). The relationship between short-circuit current density (JSC) and open-circuit voltage (VOC) is usually shown as one falls, the other rises. Controlling the trade-off between JSC and VOC to harvest high power conversion
The invention relates to the improvement of organic electroluminescent devices, in which compounds that are represented by formula (1) are used, in particular as hole injection materials or hole transport materials in a hole injection layer or hole transport layer.