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Figure 1

From: Electrochemically Reduced Graphene Oxide Multilayer Films as Efficient Counter Electrode for Dye-Sensitized Solar Cells

Figure 1

(a) Schematic illustration of the fabrication procedure of [PDDA@ERGO]n multilayer Films; (b) Transmittance spectra of [PDDA@GO]n with different numbers of layer from 0 to 19; (c) FE-SEM image of (b) FTO/[PDDA@ERGO]11 with an inset of typical cross-section; (d) Plot of sheet resistance as a function of transmittance at 550 nm for [PDDA@GO]n film on quartz slide (black), including a theoretical plot of GR film (red) calculated with equation 1 in the text.

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