Multidentate thiol self-assembled monolayers (SAMs) form multiple thiol-gold bonds to the surface which should improve the overall stability of the films. Using atomic force microscopy (AFM) we are investigating the structure and properties of multidentate SAMs in comparison to traditional n-alkanethiol SAMs, which have a single thiol link to gold surfaces. Test platforms of thiol SAMs were prepared using particle lithography and investigated under different conditions. Monolayers of traditional alkanethiols were compared side-by-side with multidentate thiols using AFM. The performance of the multidentate adsorbates and stability can be evaluated systematically as a function of the structure, e.g. the nature of the headgroup, junction, and tailgroups. The extent of surface degradation can be viewed directly with AFM images, and significant changes are evident after ex situ exposure to heat, light, or chemical reagents. These studies will enable a quantitative evaluation of the resist qualities of multidentate adsorbates.

Nanopatterns of multidentate adsorbates fabricated through particle lithography: Comparison of surface degradation of alkanethiols vs. multidentate thiols using atomic force microscopy

245th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.