AVS 56th International Symposium & Exhibition
    Applied Surface Science Tuesday Sessions
       Session AS+NS-TuA

Paper AS+NS-TuA9
Heads and Tails: Simultaneous Exposed and Buried Interface Imaging of Self-Assembled Monolayers

Tuesday, November 10, 2009, 4:40 pm, Room C2

Session: Nanoparticle and Nanoscale Surface Chemistry I
Presenter: P.X. Han, The Pennsylvania State University
Authors: P.X. Han, The Pennsylvania State University
A.R. Kurland, The Pennsylvania State University
S.U. Nanayakkara, University of Pennsylvania
M. Blake, The Pennsylvania State University
C.M. Pochas, The Pennsylvania State University
P.S. Weiss, The Pennsylvania State University
Correspondent: Click to Email
We have simultaneously imaged the chemically bound head-groups and exposed tail-groups in bi-component alkanethiolate self-assembled monolayers with molecular resolution. This has enabled us to resolve the controversy of scanning tunneling microscopy image interpretation, and to measure the molecular polar tilt and azimuthal angles. Our local measurements demonstrate that ordered domains with different superstructures also have varied buried sulfur head-group structures.