XPS measured surface elements concentrations.

Sample label	Atomic concentration (at%)
	O	Si	C	N	F	Sb	Pb	Na	Ag
1	29.0	25.6	23.5	21.0	0.5	0.2	0.1	<0.1	0.0
1m	29.6	34.8	12.8	22.2	<0.1	0.4	0.1	0.2	0.0
2	33.7	31.7	11.2	22.0	0.1	0.1	0.6	0.5	0.0
3	48.0	27.8	11.4	11.7	<0.1	0.6	0.3	0.3	0.0
1(Ag)	12.6	0.0	25.9	0.0	0.0	0.0	0.0	0.0	61.5
1m(Ag)	15.7	2.8	29.7	0.0	0.0	0.0	0.0	0.0	51.8
2(Ag)	15.2	2.8	22.6	0.0	0.0	0.0	0.1	2.0	57.4
3(Ag)	16.8	3.4	39.9	0.0	0.0	0.0	<0.1	0.0	39.8