TY - JOUR
T1 - Fundamental studies of the cluster ion bombardment of water ice
AU - Szakal, Christopher
AU - Kozole, Joseph
AU - Winograd, Nicholas
N1 - Funding Information:
The authors would like to thank Tim Tighe for metal deposition on the QCM crystal, Andreas Wucher and Barbara Garrison for discussions about this study, and partial funding for this research from the National Institutes of Health, National Science Foundation, and the American Chemical Society, Division of Analytical Chemistry Fellowship, sponsored by the Society for Analytical Chemists of Pittsburgh.
PY - 2006/7/30
Y1 - 2006/7/30
N2 - The fundamental sputtering properties of water ice are of interest for molecular depth profiling of biological samples in their native environment. We report on a method of studying amorphous water ice films of precise thicknesses in which pure water vapor is condensed onto a pre-cooled, silver-coated quartz crystal microbalance (QCM). This scheme allows for the determination of water ice sputter yields for any primary projectile as well as providing a means for studying escape depths of atoms and molecules beneath the deposited water ice layer. Specifically, we find a removal of approximately 2500 water molecule equivalents/20 keV C 60 + projectile with an underlying silver ion escape depth of 7.0 Å.
AB - The fundamental sputtering properties of water ice are of interest for molecular depth profiling of biological samples in their native environment. We report on a method of studying amorphous water ice films of precise thicknesses in which pure water vapor is condensed onto a pre-cooled, silver-coated quartz crystal microbalance (QCM). This scheme allows for the determination of water ice sputter yields for any primary projectile as well as providing a means for studying escape depths of atoms and molecules beneath the deposited water ice layer. Specifically, we find a removal of approximately 2500 water molecule equivalents/20 keV C 60 + projectile with an underlying silver ion escape depth of 7.0 Å.
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U2 - 10.1016/j.apsusc.2006.02.208
DO - 10.1016/j.apsusc.2006.02.208
M3 - Article
AN - SCOPUS:33747158515
SN - 0169-4332
VL - 252
SP - 6526
EP - 6528
JO - Applied Surface Science
JF - Applied Surface Science
IS - 19
ER -