Figure 2From: Enhancing performance of ZnO dye-sensitized solar cells by incorporation of multiwalled carbon nanotubesFE-SEM micrographs of ZnO/MWNT composite film containing 0.01 wt% of MWNTs. (a) top view and (b) cross-sectional view of ZnO/acid-MWNT film; (c) cross-sectional view of ZnO/O-MWNT film.Back to article page