179289.fig.001a
(a)
179289.fig.001b
(b)
179289.fig.001c
(c)
179289.fig.001d
(d)
Figure 1: SEM image of (a) a bare TiO2 mesoporous film and (b) In-PbS/In-CdS sensitized TiO2 mesoporous film; (c) a cross-section SEM image of a bare TiO2 film; (d) the EDX spectra of In-PbS/In-CdS QD sensitized TiO2 film.