Determination of interface dipole and band bending at the Ag/tris (8-hydroxyquinolinato) gallium organic Schottky contact by ultraviolet photoemission spectroscopy
A tris (8-hydroxyquinolinato) gallium (Gaq3) thin film was grown in several steps on a previously in situ evaporated Ag thin film. Ultraviolet photoemission spectroscopy (UPS) measurements carried out prior to growth and after each growth step allowed the determination of the alignment of the highest occupied molecular orbital (HOMO) relative to the Fermi level of the Ag substrate. The deposition of ultra-thin (submonolayer) initial ...
