Figure 3.

CuO nanowires grown in microboats and microbowls by thermal oxidation in air; (a, b) 70° oblique views, (c, d) top views for microboats, and (e, f) 70° oblique views for microbowls.

Shao et al. Nanoscale Research Letters 2011 6:86   doi:10.1186/1556-276X-6-86
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