Figure 4.

SEM/EDS spectra of as-synthesized gold-silver alloy nanoshells. Theoretical ratio of (A) Au:Ag = 1:1, experimental ratio Au:Ag = 3:1, and (B) Au:Ag = 5:1, experimental ratio Au:Ag = 3.6:1.

Gheorghe et al. Nanoscale Research Letters 2011 6:554   doi:10.1186/1556-276X-6-554
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