HOLE TRANSPORTING MATERIAL

摘要

A hole transporting material is constituted by a compound represented by the following general formula (1): wherein R1, R2, R3, R4 and R5, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar1 and Ar2 are each independently a divalent hydrocarbon residue; l is an integer of 0 or more; m is an integer of 1 or more; and n is an integer of 2 or more.