Dopants, charge-transfer salts and organic electronic devices

摘要

The present invention relates to compounds of formula (I) (I) (Core) n- (X) m In this formula, The core is a core group; n is 0 and m is 1, n is 1 and m is 1 or more; X is a group of formula II: RTI ID = 0.0 & In this formula, R ¹ , R ² , R ³ , R ⁴ and R ⁵ are each independently H or a substituent; One of R ¹ to R ⁵ is a direct bond or a divalent linking group which connects the group of formula (II) to the core when n is 1; x is 0, 1, 2, 3 or 4; y is 0, 1, 2, 3 or 4; The compounds of formula I are substituted with one or more ionic substituents. The compound can be used as an n-dopant doping an organic semiconductor.