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. Author manuscript; available in PMC: 2014 Jul 23.
Published in final edited form as: Langmuir. 2013 Jul 10;29(29):9231–9239. doi: 10.1021/la401598e

Figure 2.

Figure 2

(a) TEM images of the Au core and Au3Cu alloyed shell nanoparticles passivated with CuS2 surface layers with different morphology, where the growth of Au3Cu follows in (111) surfaces, (b) UV-Vis absorption spectra of bimetallic nanoparticles.