Fig. 4: Optical and photothermal comparison between core-shell and core-satellites AuPd nanoparticles. | Nature Communications

Fig. 4: Optical and photothermal comparison between core-shell and core-satellites AuPd nanoparticles.

From: Impact of bimetallic interface design on heat generation in plasmonic Au/Pd nanostructures studied by single-particle thermometry

Fig. 4

a Illustration and TEM images of the synthesized NPs. b Experimental extinction spectra. Each spectrum is normalized using its own maximum. c Average of single-particle PL emission spectra of NPs on glass substrates and immersed in water, excited with 1 mW μm−2 of laser light at 532 nm. A gray band with no data corresponds to the laser rejection filter. d Histograms of the experimental measured photothermal coefficient β for the three systems on glass substrates and immersed in water, at 532 nm. Red, violet, and brown correspond to Au60 NS, Au60-Pd-sat, and Au60@Pd2, respectively. Source data are provided as a Source Data file.

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