Figure 3.
AFM images (1 µm × 1 µm size) for (a) the reference sample, (b) Sample 4, (c) Sample 5 and (d) Sample 6.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.