Structural changes in self-assembled monolayers initiated by ultraviolet light

Publication Type:
Journal Article
Journal of Physical Chemistry B, 2006, 110 (32), pp. 15951 - 15954
Issue Date:
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Self-assembled monolayers of 2-anthracenethiol and 2-naphthalenethiol on gold (111) were irradiated with low-power UV light. Scanning tunneling microscope images recorded in situ show unusual structural changes. In the case of 2-anthracenethiol, structures measuring 4-7 nm wide and 30-40 nm in length are formed. Images taken 10 min after irradiation ceased to show further surface reorganization. With 2-naphthalenethiol SAMs, smaller structures form upon irradiation, which subsequently revert to resemble the original structure after time. © 2006 American Chemical Society.
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