Abstract
Photoelectron spectroscopy is an important tool to characterize charge transfer mechanism at organic/organic
interfaces. A typical donor/accepter interface made of fluorinated hexaazatrinaphthylene (HATANA-F6) and metal
phthalocyanine (MPc) molecules shows a distinct characteristics of interface charge transfer. Even though the electron affinity of HATANA-F6 is lower than the ionization energy of CuPc or boron subphthalocyanine chloride (SubPc), the charge transfer occurs at the interface where the central atoms in the phthalocyanine molecules play a major role. This result seems to exhibit one of the non-conventional charge transfer model of hybrid state formation.
