Premium
Probing Electronic Properties of Conjugated and Saturated Molecules in Self‐Assembled Monolayers
Author(s) -
WEISS P. S.,
BUMM L. A.,
DUNBAR T. D.,
BURGIN T. P.,
TOUR J. M.,
ALLARA D. L.
Publication year - 1998
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1998.tb09869.x
Subject(s) - scanning tunneling microscope , monolayer , molecule , self assembled monolayer , quantum tunnelling , conductance , substrate (aquarium) , conjugated system , scanning tunneling spectroscopy , chemistry , chemical physics , materials science , nanotechnology , crystallography , condensed matter physics , optoelectronics , organic chemistry , polymer , physics , oceanography , geology
ABSTRACT: We have measured the electron transport properties of single and bundled molecules imbedded in crystalline monolayers of alkanethiols self‐assembled on Au{111} surfaces. These measurements have been performed using scanning tunneling microscopy and microwave difference frequency alternating current scanning tunneling microscopy on molecules with saturated and fully conjugated chains. We have learned to separate the contributions of the molecules and of the tunneling junction. We have also found a means to determine the value of the contact conductance due to the choice of chemical connection to the substrate.