Metal-Free Counter Electrode for Efficient Dye-Sensitized Solar Cells through High Surface Area and Large Porous Carbon
Figure 1
(a) Nitrogen adsorption isotherm (• adsorption, ⚪ desorption) and BJH pore-size distribution (in set) of LPC material. (b) SEM image of LPC material. (c, d) TEM images of LPC.
