Figure 3.

Growth mechanisms of GaN NWs by VLS (a), self-regulated, diameter selective mechanism [17](b), particle mediated, hydride-assisted growth via the catalytic dissociation of H2 at Au NPs (c).

Zervos and Othonos Nanoscale Research Letters 2011 6:262   doi:10.1186/1556-276X-6-262
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