The mixed monolayer of biphenyl-4- thiol (BPT) and octanethiol are studied at the molecular level using a scanning tunneling microscope (STM) on Au(111) in ambient conditions. The creation of clearly coexisting domains occurs when octanethiol monolayers are immersed in BPT solutions, and is dependent on the concentration of BPT to which the sample is exposed. When coexisting on the surface, BPT and octanethiol form highly segregated domains.

Ambient STM study of sequentially adsorbed octanethiol and biphenylthiol monolayers on Au(111)

253rd National Meeting (2017)

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