Provided are pi-conjugated polymer materials that are useful for photoelectric transducer elements having high hole transportability and excellent durability, that are useful for light-emitting elements having superior emitting properties and excellent durability, and that are useful for active layers of thin film transistors.
The pi-conjugated polymers comprise a constitutional unit expressed by the General Formula (I) or (II):
in which, Ar represents an aromatic hydrocarbon group or a heterocyclic group that may have a substituent; R represents a hydrogen atom, an alkyl group or an aromatic hydrocarbon group that may have a substituent; Ar
1
represents a divalent group of an aromatic hydrocarbon or a heterocycle that may have a substituent;
in which, Ar represents an aromatic hydrocarbon group or a heterocyclic group that may have a substituent; R represents a hydrogen atom, an alkyl group or an aromatic hydrocarbon group that may have a substituent.
US7893192B2
申请人:——
公开号:US7893192B2
公开(公告)日:2011-02-22
Orthogonal electronic coupling in multicentre arylamine mixed-valence compounds based on a dibenzofulvene–thiophene conjugated bridge
Here we present organic mixed-valencecompounds with an innovative H-shape design, where four redox centers are bridged “vertically” via a dibenzofulvene backbone and “horizontally” via a bis-(dibenzofulvene)-thiophene bridge. These compounds are easily oxidized to stable high charged radical species which show intense intervalence charge transfer transitions in the near infrared region. Interestingly