A review is presented that covers the experimental and theoretical literature relating to the
preparation, electronic structure and chemical and physical properties of the surfaces of the …

Mechanisms in heterogeneous photocatalysis have traditionally been interpreted by the
band-structure model and analogously to electrochemistry. This has led to the establishment …

Photocatalytic hydrogen evolution from methanol is a standard test reaction for photocatalyst
materials. Surprisingly, the exact chemical mechanism is still widely discussed in the …

A detailed understanding of the mechanism for photocatalytic reduction of CO2 by H2O is
required to facilitate the development of catalysts that exhibit improved activity, controlled …

As the conduction band edge of rutile is close to the reduction potential of hydrogen, there is
a long-lasting discussion on whether molecular hydrogen can be evolved from this …

Gallium nitride (GaN), a wide bandgap semiconductor with absorption and emission in the
ultraviolet/visible range, is proposed as an alternative to metallic surfaces for assembling …

Abstract Non-doped GaN (0001) crystals are used as substrates in this study, on which Mn
films are vapour deposited in situ under ultrahigh vacuum (UHV). The early stages of the …

Super-band-gap illumination influences the reaction rates of semiconducting oxide surfaces
with gases and liquids, so it seems plausible that illumination also affects the analogous …

The surface band bending in Ga-polar n-type GaN surfaces, as well as the effect of Si
doping levels and in situ Ar+ ion processing on band bending, was systematically …

In this ultrahigh vacuum study, temperature-programmed desorption, Auger electron
spectroscopy, and ex-situ atomic force microscopy are used to evaluate the surface …