Electron-beam-induced damage in self-assembled monolayers

Journal of Physical Chemistry

Volumn 100, Issue 39, 1996, Pages 15900-15909

  Seshadri, Kannan ^a   Froyd, Karl ^a   Parikh, Atul N ^b   Allara, David L ^b   Lercel, Michael J ^a,b   Craighead, Harold G ^b  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

^b Department of Obstetrics Gynecology   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33751155891     PISSN: 00223654     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp960705g     Document Type: Article

References (47)

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25. 2 surfaces were attributed to the differing band structures of the two substrates and the relative positions of the adsorbed species' ionization potentials. In brief, electron impact first causes bonds to fragment to radicals, a process which, according to our above conclusion based on electron yields and distributions, should not exhibit much substrate dependence. However, the desorption yields will be strongly affected by the ability of the substrate valence band electrons to neutralize any ions formed in the initial process. In the present case of irradiation of a cross-linked SAM, since for both substrates a very similar nonvolatile carbonaceous residue is the primary product with desorption a minor product channel, the substrate-dependent neutralization efficiency should not be a controlling factor.
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