Figure 2.

SEMimages of GaN grating templates for the epitaxial growth of GaN. (a) 500-nm period, 300-nm-wide grating; (b) 500-nm period, 200-nm-wide grating; (c) 450-nm period, 200-nm-wide grating; (d) 400-nm period, 200-nm wide grating.

Wang et al. Nanoscale Research Letters 2011 6:117   doi:10.1186/1556-276X-6-117
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