A Visible-NIR Responsive Dye-Sensitized Solar Cell Based on Diatom Frustules and Cosensitization of Photopigments from Diatom and Purple Bacteria

Figure 1

UV-Vis absorption spectra of NA56 and CQV97 pigment extracts, and the cosensitizer of them in ethanol (a) and on the TiO₂ film (b).