Adhesion on Nanoorganized Multilayers: Surface Thermodynamics and Local Energy Dissipation

Table 3

Normalized areas, atomic percentages, and atomic report are obtained by XPS analysis, of different samples: (a) glass/MPS/gold/PDMS_n=10, (b) glass/MPS/gold/PDMS_n=10/gold, (c) glass/MPS/gold/PDMS_n=37, and (d) glass/MPS/gold/PDMS_n=37/gold.

	PDMS(n=10)	PDMS(n=10)	PDMS(n=37)	PDMS(n=37)
	grafted on gold layer (a)	covered by gold layer (b)	Grafted on gold layer (c)	covered by gold layer (d)
Normalised area C1s (cps eV)	96500	74300	163200	184350
Normalised area O1s (cps eV)	30541	36377	42131	24115
Normalised area N1s (cps eV)	2213	2601	6431	2669
Normalised area Si 2p (cps eV)	16487	18092	18374	13374
Normalised area Au4f (cps eV)	35447	27553	—	46816
% carbon	53.3	46.8	70.9	67.9
% oxygen	16.9	22.9	18.3	8.9
% nitrogen	1.2	1.6	2.8	1
% Silicon (Si)	9.1	11.4	8	4.9
% gold	19.6	17.3	—	17.3
C/Si	5.85	4.11	8.88	13.78
Si/N	7.45	6.96	2.86	5.01
Au/Si	2.15	1.52	—	3.50
Au/N	16.02	10.59	—	17.54
O/Si	1.85	2.01	2.29	1.80