D-A TYPE COMPOUND AND APPLICATION THEREOF

摘要

A D-A type compound and an application thereof. The D-A type compound has the general formula (1) as follows,; wherein L is a linking unit, -L- is selected from a single bond, a double bond, a triple bond, an aromatic group with a carbon atom number of 6 to 40, or a heteroaromatic group with a carbon atom number of 3 to 40; Ar is an aromatic group with a carbon atom number of 6 to 20, or a heteroaromatic group with a carbon atom number of 3 to 20; Z₁, Z₂ and Z₃ independently represent a single bond, N(R), B(R), C(R)₂, Si(R)₂, O, C═N(R), C═C(R)₂, P(R), P(═O)R, S, S═O or SO₂ respectively; X₁, X₂ and X₃ independently optionally represent N(R), C(R)₂, Si(R)₂, O, C═N(R), C═C(R)₂, P(R), P(═O)R, S, S═O or SO₂ respectively.