Irradiation Sensitivity of Self-Assembled Monolayers with an Introduced "Weak Link"

K. Heister, S. Frey, Abraham Ulman, M. Grunze, M. Zharnikov

Research output: Contribution to journalArticle

Abstract

The irradiation sensitivity of n-alkanethiolate SAMs can be enhanced by the incorporation of an irradiation-sensitive functionality as a predetermined breaking point into the alkyl chain. Following this general strategy, several different sulfur-derived functional entities with a variable position in the alkyl chain were tested. In some cases, the incorporation of these entities resulted in a noticeable enhancement of the irradiation-induced desorption (by about 30%), even though the chains were not exclusively cut at the position of the incorporated group, but the scission events related to the "weak links" were just added to those in the alkyl matrix. The position of the incorporated group along the alkyl chain was found to be most essential for its performance as a weak link; the enhancement of irradiation-induced desorption was observed only when the groups were placed close to the SAM-ambient interface.

Original languageEnglish (US)
Pages (from-to)1222-1227
Number of pages6
JournalLangmuir
Volume20
Issue number4
DOIs
StatePublished - Feb 17 2004

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Self assembled monolayers
Irradiation
irradiation
sensitivity
Desorption
desorption
augmentation
Sulfur
cleavage
sulfur
matrices

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Irradiation Sensitivity of Self-Assembled Monolayers with an Introduced "Weak Link". / Heister, K.; Frey, S.; Ulman, Abraham; Grunze, M.; Zharnikov, M.

In: Langmuir, Vol. 20, No. 4, 17.02.2004, p. 1222-1227.

Research output: Contribution to journalArticle

Heister, K. ; Frey, S. ; Ulman, Abraham ; Grunze, M. ; Zharnikov, M. / Irradiation Sensitivity of Self-Assembled Monolayers with an Introduced "Weak Link". In: Langmuir. 2004 ; Vol. 20, No. 4. pp. 1222-1227.
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