| abstract |
A charge-transporting varnish comprising: a charge-transporting substance containing an oligoaniline derivative represented by formula (1), a charge-transporting substance containing an N,N'-diarylbenzidine derivative represented by formula (2) Sexual substances, dopants and organic solvents. (In formula (1), R 1 represents hydrogen, alkyl, alkenyl, alkynyl, aryl or heteroaryl, R 2 to R 7 represent hydrogen, halogen, nitro, cyano, amino, aldehyde, hydroxyl , thiol, sulfonic acid, carboxylic acid, alkyl, alkenyl, alkynyl, aryl, heteroaryl, -NHY 1 , -NY 2 Y 3 , -C(O)Y 4 , -OY 5 , ‑SY 6 , ‑SO 3 Y 7 , ‑C(O)OY 8 , ‑OC(O)Y 9 , ‑C(O)NHY 10 , or ‑C(O)NY 11 Y 12. ) (In formula (2), R 8 to R 15 represent hydrogen, alkyl, alkenyl or alkynyl, and Ar 1 and Ar 2 represent groups represented by formula (3) or (4).) |