Figure 3.

aTEM images of the SBA-15 sample along the direction of the hexagonal pore arrangement.bTEM images of the template-free CdS sample. Insetcanddare corresponding High-magnification TEM images. Inseteis the corresponding SAED pattern ofb

Yuan et al. Nanoscale Research Letters 2009 4:414-419   doi:10.1007/s11671-008-9247-9