oxygen. Using these compounds as a host material, we successfully prepared phosphorescent organiclight‐emittingdiodes exhibiting high efficiency and adequate lifetimes. Moreover, using the present one‐step borylation, we succeeded in the synthesis of an efficient, thermally activated delayed fluorescenceemitter and boron‐fused benzo[6]helicene.
POLYCYCLIC AROMATIC COMPOUND, MATERIAL FOR AN ORGANIC DEVICE, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY APPARATUS AND LIGHTING APPARATUS
申请人:Kwansei Gakuin Educational Foundation
公开号:US20200207787A1
公开(公告)日:2020-07-02
A polycyclic aromatic compound in which a plurality of aromatic rings are connected by a boron atom and an oxygen atom, a sulfur atom or a selenium atom and substituted by a specific aryl such as anthracene, is useful as a material for an organic device. By the polycyclic aromatic compound, an organic EL device having at least one of efficiency and device life can be provided.