Figure 6.

Distribution of lateral sizes. (a) pits after etching, (b) pits with QDs therein and diameters of (c) ordered QDs, (d) ordered nanorings grown at 610°C, (e) ordered nanorings grown at 640°C and (f) ordered nanorings grown at 610°C and then annealed at 610°C for 30 min. (g) Summary of the mean values.

Ma et al. Nanoscale Research Letters 2011 6:205   doi:10.1186/1556-276X-6-205
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