HOLE-TRANSPORT MATERIALS FOR ORGANIC SOLAR CELLS OR ORGANIC OPTICAL SENSORS

摘要

The present invention relates to hole-transport materials for organic solar cells or organic optical sensors. In particular the present invention relates to a compound of general formula (I), wherein A is a group which connects all L moieties by a π-conjugated system which is formed by olefinic groups, aromatic groups, heteroaromatic groups, sandwich groups, atoms with unbound electron pairs, or combinations thereof, Z is hydrogen, an alkyl group, an aryl group, or a heteroaryl group, R1, R2, R3, R4 are independent of each other alkyl groups, aryl groups, or heteroaryl groups, n is an integer of at least 2.