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.
Formation, structure and PL property of B-GQDs. (a) The schematic representation of the formation of B-GQDs. (b) TEM image and size distribution, (c) lattice fringe, (d) atomic force microscopy image, (e) Raman spectrum, (f) PL spectra and (g) upconverted PL spectra of B-GQDs.
