| abstract |
The invention discloses a blue organic light-emitting material, a light-emitting device and a preparation method, wherein the molecular structural formula of the blue organic light-emitting material is as follows: Wherein, D is 1,3-diphenylaminobenzene, A is a nitrogen-containing aromatic heterocycle, and n=1-4. The nitrogen-containing aromatic heterocycle has excellent stability and strong electron-withdrawing ability, and has a carrier transport ability close to that of 1,3-diphenylaminobenzene, and the balanced carrier transport ability is beneficial to improve the luminous efficiency. In addition, in the present invention, L selects a benzene chain, the number of benzene is 1 to 4, the molecular weight is not more than 1000, and the synthesis is relatively easy. |