Figure 4: Analysis of core-shell nanoparticles that were laser-generated in acetone. | Scientific Reports

Figure 4: Analysis of core-shell nanoparticles that were laser-generated in acetone.

From: Solvent-surface interactions control the phase structure in laser-generated iron-gold core-shell nanoparticles

Figure 4

(a) Line scan and EDX signal of a core-shell nanoparticle. (b) STEM-HAADF image of an Fe@Au core-shell nanoparticle with regions of EDX analysis indicated (shell: regions 1–3, predominantly Au, core: region 4, composed of Fe and Au. For the detailed EDX analysis, see Supplementary Fig. S6). (c) STEM–HAADF image of an FIB-milled Fe@Au core-shell nanoparticle. (d) Histograms of the shell thickness and core diameter of laser-generated Fe@Au core-shell nanoparticles. Average values and peak maxima indicate a mean core diameter of 15 nm and a shell thickness of 3 nm. (e) Representative EDX point measurements indicating the presence of pure Au in the shell (region b1) and a mixture of Au and iron in the core (region b4).

Back to article page