US 11,778,906 B2 · Electron transport material and application thereof

Abstract

The present disclosure relates to an electron transport material and an application thereof. According to the electron transport material, a structure of a molecular is designed and selected to be constructed by a group having a high carrier mobility, such that the molecule has a higher carrier mobility. In addition, a core group of the molecule is a structure based on mesitylene triazine. The molecular rigidity of the structure is strong, and the intermolecular stacking can be effectively inhibited, such that the material has a lower refractive index, and the surface plasma polariton loss of an organic light-emitting device can be effectively suppressed. The forward light-emitting efficiency of the light-emitting device can be improved by more than 14% by applying the electron transport material to the device.

Claims17

Dependent claims

An electron transport material, comprising:

a compound represented by a general formula I,
wherein, R1-1, R1-2, R2-1, R2-2, R3-1 and R3-2 are each independently selected from hydrogen and one of the following groups represented by formulas 1-3 to 1-16, and R1-1 and R1-2 are not simultaneously hydrogen, R2-1 and R2-2 are not simultaneously hydrogen, and R3-1 and R3-2 are not simultaneously hydrogen,
wherein, * denotes the binding sites of the R1-1, R1-2, R2-1, R2-2, R3-1 and R3-2 with a benzene ring on the compound represented by the general formula I.

Dependencies are inferred from the claim text.

Electron transport material and application thereof

Life of this patent

Electron transport material and application thereof

Life of this patent

Abstract

Claims17