Hl. Margarian et al., INFLUENCE OF OPTICAL-EXCITATION OF 2-DIMENSIONAL SURFACE SUBBANDS ON PHOTOCURRENT ACROSS SEMICONDUCTOR-ELECTROLYTE INTERFACE, Surface review and letters, 4(5), 1997, pp. 933-935
It was shown that in the case of TiO2 contacted with an electrolyte, o
ptical transitions of electrons from the valence band to the two-dimen
sional surface subband located near the conduction band or covered wit
h the band.