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.
(a) C sp3 content determined from C KLL AES spectra and parameter D (Table 4), C 1s spectra fitting (Table S2) and REELS-surface (REELS-S) and REELS-bulk (REELS-bulk) components (Table 3), (b) the respective differences, Raman spectra D, G, 2D modes (c) positions (Table 2) and (d) FWHMs (Table 2) dependent on the average number of layers in the investigated samples.
