Figure 4From: Surface plasma resonant effect of gold nanoparticles on the photoelectrodes of dye-sensitized solar cellsCross-section FE-SEM images of the photoelectrodes of dye-sensitized solar cells. (a) Without gold nanoparticles added. (b) With spherical gold nanoparticles added. (c) With short gold nanorods added. (d) With long gold nanorods added.Back to article page