Figure 4.
XPS spectra: (a) full XPS spectrum; (b–d) deconvoluted (b) C 1s, (c) N 1s, and (d) O 1s spectra.
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.