Influence of the Pore Structure on the Electron Barrier Height of Metal-Ceramic Nanomaterials Based on Gold-Anodic Aluminum Oxide

The influence of the of the pore structure on the electron barrier height of Au–Al 2 O 3 structures is experimentally studied. The porous structures of anodic aluminum oxide of two types with through pores and pores in the form of a well are investigated. It is shown that, depending on the shape of the pore profile, the deposited thin gold film creates a different height of the electron barrier at the metal-insulator interface. The method of linear optical spectroscopy showed that the height of the barrier for structures with through pores is higher by 2.0 eV.