Schottky junction/ohmic contact behavior of a nanoporous TiO₂ thin film photoanode in contact with redox electrolyte solutions

• Masao Kaneko,
• Hirohito Ueno and
• Junichi Nemoto

Beilstein J. Nanotechnol. 2011, 2, 127–134, doi:10.3762/bjnano.2.15

• solution) negatively charged. As the result the band structure of the SC (both the valence band (VB) and the conduction band) is bent as shown in Figure 3. This curved portion of the band structure is called a space charge layer (also called a depletion layer, where electrons are depleted). Under this

• representation for the formation of continuous Schottky junctions with space charge layer (i.e., depletion layer, green region) and conduction band (CB, gray region) in a nanoporous n-TiO2 thin film formed at the interface with an aqueous electrolyte solution containing an electron donor. In the space charge