Fig. 2. (a) Water contact angles of V1498 and V1499 before and after the cross-linking process; (b) electric field dependencies of hole drift mobilities in films of V1498 and V1499 before and after the cross-linking procedure; (c) and (d) photoemission in air spectra of charge transporting layers of V1498 and V1499 before and after the cross-linking procedure.
