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.
XPS atomic ratios for the Si samples coated with PEG, PEG + [EMIM][EtSO4] and PEG + [EMIM][TfO].
| PEG + [EMIM][EtSO4] | PEG + [EMIM][TfO] | PEG | |
| C–O/Si | 0.41 ± 0.01 | 0.43 ± 0.01 | 0.46 ± 0.01 |
| N/C–O | 0.13 ± 0.01 | 0.16 ± 0.01 | — |
| S/C–O | 0.042 ± 0.004 | 0.066 ± 0.007 | — |
