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. 2017 Nov 9;7:15187. doi: 10.1038/s41598-017-15447-w

Figure 1.

Figure 1

SEM images of NWs grown for different concentrations of ammonia: (a) 0 mM, (b) 10 mM, (c) 20 mM, (d) 30 mM, (e) 40 mM. The inset in each panel a-e shows the top view SEM image acquired from the same sample. The scale bar in the inset is 500 nm. (f) Panel shows the variation of density of NWs with the change in NH4OH concentration.