Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. EDS spectrum and line scan profile of single Au/Ag nanoparticle.
  • Fig. S2. Surface charge plots for an Au/Ag core-shell nanoparticle.
  • Fig. S3. Transmission electron micrographs showing the native structure of gold nanoparticle dimers and size analysis of single gold nanoparticles.
  • Fig. S4. Surface charge plots for the T mode for thin-shelled dimers.
  • Fig. S5. Effects of increasing shell thickness on Ag and AgCl shells.
  • Fig. S6. Digital color images taken with an SLR (single-lens reflex) camera at microscope eyepiece during initial electrodeposition.
  • Fig. S7. Color images of Au/Ag single particles and dimers under oxidizing and reducing conditions.
  • Fig. S8. Charge density maps of T modes for both shell states for bridged dimers.
  • Fig. S9. Effects of varying Au core size on Au/Ag bridged dimers.
  • Fig. S10. Mode evolution with increasing Ag content under concentric spherical growth hypotheses.
  • Fig. S11. Evolution of the SB mode with increasing Ag shell thickness.
  • Fig. S12. Cyclic voltammogram with and without illumination of the working electrode.
  • Fig. S13. Electrochemical characterization of the Au/Ag surface reaction.
  • Fig. S14. Diagram showing sample geometry used in FEM simulations.
  • Legend for video S1

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Other Supplementary Material for this manuscript includes the following:

  • Video S1 (.mp4 format). Effects of redox tuning for a conductively bridged dimer.

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