Scanning tunneling microscopy of self-assembled phenylene ethynylene oligomers on Au(111) substrates

K Walzer; E Marx; N C Greenham; R J Less; P R Raithby; K Stokbro

doi:10.1021/ja036771v

Scanning tunneling microscopy of self-assembled phenylene ethynylene oligomers on Au(111) substrates

K Walzer, E Marx, N C Greenham, R J Less, P R Raithby, K Stokbro

Department of Chemistry

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

59 Citations (SciVal)

Abstract

In this paper, we report the self-assembly, electrical characterization, and surface modification of dithiolated phenylene-ethynylene oligomer monolayers on a Au(111) surface. The self-assembly was accomplished by thiol bonding the molecules from solution to a Au(111) surface. We have confirmed the formation of self-assembled monolayers by scanning tunneling microscopy (STM) and optical ellipsometry, and have studied the kinetics of film growth. We suggest that self-assembled phenylene ethynylene oligomers on Au(111) surfaces grow as thiols rather than as thiolates. Using low-temperature STM, we collected local current-voltage spectra showing negative differential resistance at 6 K.

Original language	English
Pages (from-to)	1229-1234
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	126
Issue number	4
DOIs	https://doi.org/10.1021/ja036771v
Publication status	Published - 2004

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ID number: ISI:000188534200054

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title = "Scanning tunneling microscopy of self-assembled phenylene ethynylene oligomers on Au(111) substrates",

abstract = "In this paper, we report the self-assembly, electrical characterization, and surface modification of dithiolated phenylene-ethynylene oligomer monolayers on a Au(111) surface. The self-assembly was accomplished by thiol bonding the molecules from solution to a Au(111) surface. We have confirmed the formation of self-assembled monolayers by scanning tunneling microscopy (STM) and optical ellipsometry, and have studied the kinetics of film growth. We suggest that self-assembled phenylene ethynylene oligomers on Au(111) surfaces grow as thiols rather than as thiolates. Using low-temperature STM, we collected local current-voltage spectra showing negative differential resistance at 6 K.",

author = "K Walzer and E Marx and Greenham, {N C} and Less, {R J} and Raithby, {P R} and K Stokbro",

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T1 - Scanning tunneling microscopy of self-assembled phenylene ethynylene oligomers on Au(111) substrates

AU - Walzer, K

AU - Marx, E

AU - Greenham, N C

AU - Less, R J

AU - Raithby, P R

AU - Stokbro, K

N1 - ID number: ISI:000188534200054

PY - 2004

Y1 - 2004

N2 - In this paper, we report the self-assembly, electrical characterization, and surface modification of dithiolated phenylene-ethynylene oligomer monolayers on a Au(111) surface. The self-assembly was accomplished by thiol bonding the molecules from solution to a Au(111) surface. We have confirmed the formation of self-assembled monolayers by scanning tunneling microscopy (STM) and optical ellipsometry, and have studied the kinetics of film growth. We suggest that self-assembled phenylene ethynylene oligomers on Au(111) surfaces grow as thiols rather than as thiolates. Using low-temperature STM, we collected local current-voltage spectra showing negative differential resistance at 6 K.

AB - In this paper, we report the self-assembly, electrical characterization, and surface modification of dithiolated phenylene-ethynylene oligomer monolayers on a Au(111) surface. The self-assembly was accomplished by thiol bonding the molecules from solution to a Au(111) surface. We have confirmed the formation of self-assembled monolayers by scanning tunneling microscopy (STM) and optical ellipsometry, and have studied the kinetics of film growth. We suggest that self-assembled phenylene ethynylene oligomers on Au(111) surfaces grow as thiols rather than as thiolates. Using low-temperature STM, we collected local current-voltage spectra showing negative differential resistance at 6 K.

U2 - 10.1021/ja036771v

DO - 10.1021/ja036771v

M3 - Article

SN - 0002-7863

VL - 126

SP - 1229

EP - 1234

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 4

ER -

Scanning tunneling microscopy of self-assembled phenylene ethynylene oligomers on Au(111) substrates

Abstract

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