Role of fluorine interactions in the self-assembly of a functionalized anthradithiophene monolayer on Au(111)

Shawn M. Huston; Jiuyang Wang; Marsha A. Loth; John E. Anthony; Brad R. Conrad; Daniel B. Dougherty

doi:10.1021/jp307539q

Role of fluorine interactions in the self-assembly of a functionalized anthradithiophene monolayer on Au(111)

Shawn M. Huston, Jiuyang Wang, Marsha A. Loth, John E. Anthony, Brad R. Conrad, Daniel B. Dougherty

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Scanning tunneling microscopy studies of the first monolayer of 2,8-difluoro-5,11-(bis)triethylsilylethynyl anthradithiophene on Au(111) reveal two ordered structures with anthradithiophene planes parallel to the substrate. Submolecular resolution STM images demonstrate structures with a close approach of fluorine-sulfur and fluorine-fluorine atoms in the ordered structures. This provides evidence for the importance of noncovalent F-S and F-F in driving 2D self-assembly in the monolayer. Spectroscopic studies indicate a transport gap of 2.4 eV that is insensitive to the local domain structures, as expected for weak intermolecular interactions.

Original language	English
Pages (from-to)	21465-21471
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	116
Issue number	40
DOIs	https://doi.org/10.1021/jp307539q
State	Published - Oct 11 2012

Funding

Funders	Funder number
National Science Foundation (NSF)	1056861

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "Role of fluorine interactions in the self-assembly of a functionalized anthradithiophene monolayer on Au(111)",

abstract = "Scanning tunneling microscopy studies of the first monolayer of 2,8-difluoro-5,11-(bis)triethylsilylethynyl anthradithiophene on Au(111) reveal two ordered structures with anthradithiophene planes parallel to the substrate. Submolecular resolution STM images demonstrate structures with a close approach of fluorine-sulfur and fluorine-fluorine atoms in the ordered structures. This provides evidence for the importance of noncovalent F-S and F-F in driving 2D self-assembly in the monolayer. Spectroscopic studies indicate a transport gap of 2.4 eV that is insensitive to the local domain structures, as expected for weak intermolecular interactions.",

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T1 - Role of fluorine interactions in the self-assembly of a functionalized anthradithiophene monolayer on Au(111)

AU - Huston, Shawn M.

AU - Wang, Jiuyang

AU - Loth, Marsha A.

AU - Anthony, John E.

AU - Conrad, Brad R.

AU - Dougherty, Daniel B.

PY - 2012/10/11

Y1 - 2012/10/11

N2 - Scanning tunneling microscopy studies of the first monolayer of 2,8-difluoro-5,11-(bis)triethylsilylethynyl anthradithiophene on Au(111) reveal two ordered structures with anthradithiophene planes parallel to the substrate. Submolecular resolution STM images demonstrate structures with a close approach of fluorine-sulfur and fluorine-fluorine atoms in the ordered structures. This provides evidence for the importance of noncovalent F-S and F-F in driving 2D self-assembly in the monolayer. Spectroscopic studies indicate a transport gap of 2.4 eV that is insensitive to the local domain structures, as expected for weak intermolecular interactions.

AB - Scanning tunneling microscopy studies of the first monolayer of 2,8-difluoro-5,11-(bis)triethylsilylethynyl anthradithiophene on Au(111) reveal two ordered structures with anthradithiophene planes parallel to the substrate. Submolecular resolution STM images demonstrate structures with a close approach of fluorine-sulfur and fluorine-fluorine atoms in the ordered structures. This provides evidence for the importance of noncovalent F-S and F-F in driving 2D self-assembly in the monolayer. Spectroscopic studies indicate a transport gap of 2.4 eV that is insensitive to the local domain structures, as expected for weak intermolecular interactions.

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Role of fluorine interactions in the self-assembly of a functionalized anthradithiophene monolayer on Au(111)

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