. Author manuscript; available in PMC: 2015 Jan 9.

Published in final edited form as: J Phys Chem C Nanomater Interfaces. 2014 Jan 9;118(1):376–383. doi: 10.1021/jp409338y

Table 2.

XPS C1s peak area ratios for various surfaces, the peaks are shown in figure 2 and the peak for PFPA-silane:PFB-silane (1:10) SAM is shown in figure S1.

BE		285.0 eV	286.6 eV	287.8–288.2 eV	289.5 eV
		C=C-C;C-H	C=C-N; C-N; C-O	C=C-F; O=C-N	O=C-O
FWHM for silane SAMs		1.4	1.4	1.4	---
PFPA-silane SAM		0.30	0.23	0.47	---
PFPA-silane:PFB-silane (1:10) SAM		0.22	0.25	0.53	---
PFB-silane SAM		0.27	0.22	0.51	---
PFPA-disulfide SAM	FWHM	1.1	1.3	1.3	1.3
PFPA-disulfide SAM	ratio	0.49	0.18	0.28	0.05
ATFP-thiol SAM	FWHM	1.1	1.3	1.4	1.3
ATFP-thiol SAM	ratio	0.44	0.13	0.35	0.08