fig8
Figure 8. Irradiation-induced crosslinked NBPT SAM. (A) Schematic representation of the irradiation process, (B) XPS spectra for NBPT on gold before and after irradiation. Reprinted with permission from Ref.[53], copyright 2016 Wiley. NBPT: 4'-nitro-4-biphenylthiol; SAM: self-assembled monolayer; XPS: X-ray photoelectron spectroscopy.