Figure 2.

Surface morphologies of a TiO₂ and b TiO₂/CdS films by FESEM measurements; c Low-magnification and d high-magnification HRTEM images of TiO₂/CdS film

Zhu et al. Nanoscale Research Letters 2010 5:1749 doi:10.1007/s11671-010-9705-z