Figure 3.

aSEM image of the nanotubular TiO2template used for vertical order of Si-ncs/P3HT bulk-heterojunction.bXRD spectra that reveals transformation of as-grown amorphous TiO2nanotubes into a single phase anatase after annealing at 450 °C

Švrček et al. Nanoscale Research Letters 2009 4:1389-1394   doi:10.1007/s11671-009-9410-y