Boron-containing organic electroluminescent material, preparation method and application thereof

The invention relates to a boron-containing organic electroluminescent material, a preparation method and application thereof and belongs to the technical field of organic electroluminescence. The novel boron-containing organic electroluminescent material is synthesized through a multi-step buckle reaction, and molecules have a suitable molecular weight (400-1200), a wider energy gap (3.5-4.0eV) and a higher glass transition temperature Tg (120 DEG C or above) and is suitable for use as a light-emitting layer main material. A manufactured organic electroluminescent device has higher current efficiency and longer device life. 本发明涉及一种含硼有机电致发光材料、制备方法及其应用，属于有机电致发光技术领域。本发明通过多步扣环反应，合成了一种新型的含硼有机电致发光材料，这类分子具有合适的分子量(400～1200)、较宽的能隙(均处于3.5～4.0eV)、较高的玻璃化转变温度Tg(120℃以上)，适合作为发光层主体材料；制作的有机电致发光器件，具有更好的电流效率和更长的器件寿命。