| abstract |
The invention relates to an organic electroluminescence device, which belongs to the field of optoelectronic materials. The structure of the organic light-emitting device prepared by the present invention includes: a hole transport region, an electron transport region and a light-emitting layer, wherein the light-emitting layer contains the host material represented by the general formula (1), and the organic light-emitting device has high efficiency and long life. and low efficiency roll-off characteristics: |