New monolayer phases of [ital n]-alkane thiols self-assembled on Au(111): Preparation, surface characterization, and imaging

Journal Article · Thu Dec 15 04:00:00 EST 1994 · Journal of Chemical Physics; (United States)

DOI:https://doi.org/10.1063/1.467854· OSTI ID:6836451

Camillone, N III; Eisenberger, P; Leung, T Y.B.; Schwartz, P; Scoles, G ^[1]; Poirier, G E; Tarlov, M J ^[2]

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1. Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544 (United States)
2. National Institute of Standards and Technology, Process Measurements Division, Gaithersburg, Maryland 20899 (United States)

We report the observation by scanning tunneling microscopy (STM) and low energy atom diffraction, of new, striped, structures at the surface of monolayers of [ital n]-alkane thiols [CH[sub 3] (CH[sub 2])[sub [ital n][minus]1] SH with [ital n]=8,10,12] self-assembled on the (111) face of single crystal gold. These structures can be prepared by slow (room temperature) or thermally accelerated treatment of the well known [ital c](4[radical]3[times]2[radical]3)R 30[degree] phase formed by self-assembly in solution, or can be accessed directly by molecular beam deposition. With respect to the unit mesh of the gold substrate, the new striped structures can be described as [ital p][times][radical]3 overlayers where 7.5[le][ital p][le]13. The discovery of these phases has implications for the understanding of the growth mechanisms and the pursuit of applications of this widely studied class of materials.

• DOE Contract Number: FG02-93ER45503
• OSTI ID: 6836451
• Journal Information: Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 101:12; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKANES
ATOMIC BEAM DIFFRACTION
COHERENT SCATTERING
CRYSTAL GROWTH
CRYSTAL STRUCTURE
DEPOSITION
DIFFRACTION
DISPERSIONS
ELECTRON MICROSCOPY
ELEMENTS
ENERGY DEPENDENCE
GOLD
HYDROCARBONS
METALS
MICROSCOPY
MIXTURES
MOLECULES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHASE STUDIES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SOLUTIONS
SYNTHESIS
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
THIOLS
TRANSITION ELEMENTS
TUNNEL EFFECT