Dopants, charge transfer salts and organic electronic devices

摘要

A compound of formula (I) :( Core) n- (X) m, wherein Core is a core group; n is 0 and m is 1, or n is 1 and m is at least 1; X is a group of formula (II) wherein R ¹ , R ³ and R ⁵ are each independently H or a substituent; R ² and R ⁴ are each Is a substituent; ^{one of} R ^{1 to} R ⁵ , when n is 1, is a direct bond or a divalent linking group that links the group of formula (II) to Core; x And y is 0, 1, 2, 3 or 4)) and is substituted by at least one ionic substituent. The compounds of the present invention may be used as n-type dopants for doping into organic semiconductors.