POLYMORPHISM OF LITHIUM PHTHALOCYANINE THIN-FILMS

Lithium phthalocyanine (LiPc) represents one of the first intrinsic or ganic semiconductors. For possible applications, the preparation of th in films of this material is most important. We prepared films in the thickness range between 2 and 2000 nm by vacuum deposition. The influe nce of different substrates and their temperature T(s) during depositi on is observed to modify the dominant stacking orientation. At high te mperatures of T(s) epitaxial growth of single crystals is found on mic a substrates. The structure of representative films is investigated by electron transmission microscopy and electron diffraction. The anisot ropy of the films influences the angle-dependent magnetic properties a s the linewidth DELTAB1/2 and the g factor of ESR experiments.