Figure 3.
TEM images showing size distribution of GQD1–GQD4 (a–d) (scale bar, 10 nm). The inset images show high-resolution images of GQD1–GQD4 (scale bar, 2 nm) and the corresponding size distribution curves.
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.