Patent ID: 8188462
Filing Date: 2012-05-29
Classification: C07C,C07D,C09K,C25B,H01L,Y10S

Abstract:
1. An electronic device comprising at least one active layer comprising at least one of Spirobifluorene (“SBF”) derivatives selected from general formulae (II), (III), (IV), (V) and (VI) and corresponding radical anions: in which K, L, M and N, the same or different from each other, are independently: H or A-C═O, with the proviso that it is never K=L=M=N═H, R R R R wherein A is an aromatic group bearing at least one radical R or R′, with R═H or aliphatic group and R′ is a halogen, trifluoromethyl, hydroxyl, —SH, —SC[C