Fig. 6

Solvent dependence of mobility and I0–0/I0–1. a Solvent dependence of the holes and electrons mobility ratio (μe/μh). b Solvent dependence of the relative peak ratio between the I0–1 and I0–0 peak (∝ λ2) found in A// UV–Vis. Such ratio is proportional to the H-type electron-vibration coupling. Films spun from toluene are characterized by a negligible dichroic ratio and are not considered here. Trichlorobenzene (tcb), chloroform (cf), chlorobenzene (cb), chloronaphthalene (cn)