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Resolution: standard / high Figure 4 .
Fragment of a sample anodized via the wagon-wheel mask. (a) Plane view optical image (dark field mode), under the mask por-Si is reddish; (b) cross-sectional SEM image upon dissolution of por-Si.
Astrova and Zharova Nanoscale Research Letters 2012 7:421 doi:10.1186/1556-276X-7-421 |
