Figure 3

Characterization of quantum dots.

(a) TEM images of CdSe/H-TiO₂. The image in the right panel is a close-up image of the rectangular area of the left image. (b) UV absorption spectra of P25 and H-TiO₂ before and after the deposition of CdSe. (c) Photoluminescence spectra of CdSe and CdSe/H-TiO₂.