Organic Heteroepitaxy: p-Sexiphenyl on Uniaxially Oriented α-Sexithiophene

Organic–organic heteroepitaxy using two rodlike aromatic molecules shows that p‐sexiphenyl aligns predominantly parallel to an underlying uniaxially oriented α‐sexithiophene film (see figure) although there is no lattice match of the two layers. The structure of both layers is determined and the results suggest that a simple transfer of the well‐established models of inorganic epitaxy cannot explain the heterostructures formed here.