Figure 7.

TEM images (a) collected nanotip fragment and line scan EDX along i) length, which shows ii) width of fragment. EDX results along the length and width show (b,e) oxygen, (c,f) sodium throughout the fragment, and (d,g) silicon only at the agglomerated particles.

Samarasekera et al. Nanoscale Research Letters 2012 7:404   doi:10.1186/1556-276X-7-404
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