Figure 2.

FE-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.

Chang et al. Nanoscale Research Letters 2012 7:166   doi:10.1186/1556-276X-7-166
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