Science Advances

Supplementary Materials

This PDF file includes:

  • Legends for movies S1 to S8
  • fig. S1. Complete set of images and electrical data for the deposition experiment shown in Fig. 1 and movie S1.
  • fig. S2. Potential control of deposition.
  • fig. S3. Sequential bright-field TEM images of writing and erasing Au nanocrystals.
  • fig. S4. Relationship between pulse width and deposition morphology and quantity.
  • fig. S5. Concentration and diffusion profile of Au ions in the electrochemical + radiolytic deposition process of Au nanocrystals.
  • fig. S6. Images showing writing and erasing of Au from movies S5 and S6.
  • fig. S7. Electrochemical data for deposition of Cu and Ni nanocrystals.
  • fig. S8. Overall process of metal nanocrystal growth via ion release under electrochemical control and subsequent reduction to form nanocrystals under radiolytic control.
  • table S1. The activation potential for electrochemical growth of metal nanocrystals in 0.1 M HCl.
  • References (4347)

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Other Supplementary Material for this manuscript includes the following:

  • movie S1 (.avi format). Formation of Au nanocrystals in 0.1 M HCl under a pulsed current of –60 nA for 10 s, followed by 0 nA for 10 s.
  • movie S2 (.avi format). Dissolution of the Au CE in 0.1 M HCl under linear potential sweeping.
  • movie S3 (.avi format). Formation of Au nanocrystals in 0.1 M HCl during step potential shown in fig. S2A.
  • movie S4 (.avi format). Electrochemical deposition at the Au CE in 0.1 M HCl during alternating square wave potential shown in fig. S2B.
  • movie S5 (.avi format). Formation of Au nanocrystals in 0.1 M HCl under a pulsed current of –60 nA for 5s, followed by 0 nA for 5 s.
  • movie S6 (.avi format). Oxidative etching of Au nanocrystals in 0.1 M HCl under electron beam irradiation at a dose rate of 260 e–/Å2.s.
  • movie S7 (.avi format). Formation of Cu nanocrystals in 0.1 M HCl during linear potential sweeping.
  • movie S8 (.avi format). Formation of Ni nanocrystals in 0.1 M HCl during linear potential sweeping.

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