Fig. 20From: Dye-Sensitized Solar Cells: Fundamentals and Current StatusEnergy level diagram of LG-11 to LG-14 porphyrins, electrolyte and TiO2 (a) and absorption (left, solid line) and emission (right, dashed line) spectra of porphyrin sensitizers LG-13 and LG-14 in the THF solvent (b)Back to article page