Figure 7 .

CL spectra of a GaN nanowire. Grown with the Ga source at a distance of 20 cm. (a) SEM image, along with the 366-nm monochromatic luminescence image in the inset, and (b) CL spectra.

Hou et al. Nanoscale Research Letters 2012 7:373   doi:10.1186/1556-276X-7-373
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