Patent ID: 6960398

Claim:
A charge transporting material comprising a compound, a molecular structure of which has at least one repeating unit represented by the following formula (1): wherein, Ar is a non-substituted or substituted arylene group or a non-substituted or substituted heterocyclic group, the arylene group having 6 or more to 60 or less carbon atoms and forming a conjugated bond system extending over a region between two nitrogen atoms, the heterocyclic group having 4 or more to 60 or less carbon atoms and also forming a conjugated bond system extending over a region between two nitrogen atoms, and wherein, each R may be different or same, and selected from the group consisting of hydrogen atom, alkyl group having 1 to 20 carbon atoms, alkoxyl group having 1 to 20 carbon atoms, alkylthio group having 1 to 20 carbon atoms, alkylsilyl group having 1 to 60 carbon atoms, alkylamino group having 1 to 40 carbon atoms, aryl group having 6 to 60 carbon atoms, aryloxyl group having 6 to 60 carbon atoms, arylalkyl group having 7 to 60 carbon atoms, arylalkoxyl group having 7 to 60 carbon atoms, arylalkenyl group having 8 to 60 carbon atoms, arylamino group having 6 to 60 carbon atoms, heterocyclic group having 4 to 60 carbon atoms, cyano group, nitro group, and halogen atoms.