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Exposure of Self-Assembled Monolayers to Highly Charged Ions and Metastable Ions



L P. Ratliff, Ronaldo Minniti, A Bard, E W. Bell, John D. Gillaspy, D Parks, A J. Black, G M. Whitesides


The doses of neutral metastable argon atoms (Ar*) and highly charged xenon ions (HCIs) required to damage self-assembled monolayers (SAMs) of alkanethiolates on gold are compared in a set of experiments carried out concurrently. The extent of damage to the SAM is determined by developing the samples in a gold etching solution, then measuring the decrease in reflectivity of the gold; {approximately} 105 Ar* are required to cause the same amount of damage as 1 HCI, as measured by this assay. We have also demonstrated HCI micropatterning of a surface using a physical mask, suggesting the application of this system in lithography.
Applied Physics Letters
No. 4


dose, highly charged ions, metastable ions, patterning, self-assembled monolayers, surface


Ratliff, L. , Minniti, R. , Bard, A. , Bell, E. , Gillaspy, J. , Parks, D. , Black, A. and Whitesides, G. (1999), Exposure of Self-Assembled Monolayers to Highly Charged Ions and Metastable Ions, Applied Physics Letters (Accessed June 8, 2023)
Created July 1, 1999, Updated February 17, 2017