Electrical transport properties of oligothiophene-based molecular films studied by current sensing atomic force microscopy

Bas L.M. Hendriksen; Florent Martin; Yabing Qi; Clayton Mauldin; Nenad Vukmirovic; Junfeng Ren; Herbert Wormeester; Allard J. Katan; Virginia Altoe; Shaul Aloni; Jean M.J. Fréchet; Lin Wang Wang; Miquel Salmeron

doi:10.1021/nl202720y

Electrical transport properties of oligothiophene-based molecular films studied by current sensing atomic force microscopy

Bas L.M. Hendriksen, Florent Martin, Yabing Qi, Clayton Mauldin, Nenad Vukmirovic, Junfeng Ren, Herbert Wormeester, Allard J. Katan, Virginia Altoe, Shaul Aloni, Jean M.J. Fréchet, Lin Wang Wang, Miquel Salmeron^*

^*Corresponding author for this work

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

32 Scopus citations

Abstract

Using conducting probe atomic force microscopy (CAFM) we have investigated the electrical conduction properties of monolayer films of a pentathiophene derivative on a SiO₂/Si-p+ substrate. By a combination of current-voltage spectroscopy and current imaging we show that lateral charge transport takes place in the plane of the monolayer via hole injection into the highest occupied molecular orbitals of the pentathiophene unit. Our CAFM data suggest that the conductivity is anisotropic relative to the crystalline directions of the molecular lattice.

Original language	English (US)
Pages (from-to)	4107-4112
Number of pages	6
Journal	Nano Letters
Volume	11
Issue number	10
DOIs	https://doi.org/10.1021/nl202720y
State	Published - Oct 12 2011

Keywords

Langmuir-Blodgett monolayer
Oligothiophene
conduction anisotropy
current sensing atomic force microscopy
lateral transport
molecular electronics

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl202720y

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Hendriksen, B. L. M., Martin, F., Qi, Y., Mauldin, C., Vukmirovic, N., Ren, J., Wormeester, H., Katan, A. J., Altoe, V., Aloni, S., Fréchet, J. M. J., Wang, L. W., & Salmeron, M. (2011). Electrical transport properties of oligothiophene-based molecular films studied by current sensing atomic force microscopy. Nano Letters, 11(10), 4107-4112. https://doi.org/10.1021/nl202720y

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abstract = "Using conducting probe atomic force microscopy (CAFM) we have investigated the electrical conduction properties of monolayer films of a pentathiophene derivative on a SiO2/Si-p+ substrate. By a combination of current-voltage spectroscopy and current imaging we show that lateral charge transport takes place in the plane of the monolayer via hole injection into the highest occupied molecular orbitals of the pentathiophene unit. Our CAFM data suggest that the conductivity is anisotropic relative to the crystalline directions of the molecular lattice.",

keywords = "Langmuir-Blodgett monolayer, Oligothiophene, conduction anisotropy, current sensing atomic force microscopy, lateral transport, molecular electronics",

author = "Hendriksen, {Bas L.M.} and Florent Martin and Yabing Qi and Clayton Mauldin and Nenad Vukmirovic and Junfeng Ren and Herbert Wormeester and Katan, {Allard J.} and Virginia Altoe and Shaul Aloni and Fr{\'e}chet, {Jean M.J.} and Wang, {Lin Wang} and Miquel Salmeron",

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month = oct,

day = "12",

doi = "10.1021/nl202720y",

language = "English (US)",

volume = "11",

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journal = "Nano Letters",

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publisher = "American Chemical Society",

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T1 - Electrical transport properties of oligothiophene-based molecular films studied by current sensing atomic force microscopy

AU - Hendriksen, Bas L.M.

AU - Martin, Florent

AU - Qi, Yabing

AU - Mauldin, Clayton

AU - Vukmirovic, Nenad

AU - Ren, Junfeng

AU - Wormeester, Herbert

AU - Katan, Allard J.

AU - Altoe, Virginia

AU - Aloni, Shaul

AU - Fréchet, Jean M.J.

AU - Wang, Lin Wang

AU - Salmeron, Miquel

PY - 2011/10/12

Y1 - 2011/10/12

N2 - Using conducting probe atomic force microscopy (CAFM) we have investigated the electrical conduction properties of monolayer films of a pentathiophene derivative on a SiO2/Si-p+ substrate. By a combination of current-voltage spectroscopy and current imaging we show that lateral charge transport takes place in the plane of the monolayer via hole injection into the highest occupied molecular orbitals of the pentathiophene unit. Our CAFM data suggest that the conductivity is anisotropic relative to the crystalline directions of the molecular lattice.

AB - Using conducting probe atomic force microscopy (CAFM) we have investigated the electrical conduction properties of monolayer films of a pentathiophene derivative on a SiO2/Si-p+ substrate. By a combination of current-voltage spectroscopy and current imaging we show that lateral charge transport takes place in the plane of the monolayer via hole injection into the highest occupied molecular orbitals of the pentathiophene unit. Our CAFM data suggest that the conductivity is anisotropic relative to the crystalline directions of the molecular lattice.

KW - Langmuir-Blodgett monolayer

KW - Oligothiophene

KW - conduction anisotropy

KW - current sensing atomic force microscopy

KW - lateral transport

KW - molecular electronics

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U2 - 10.1021/nl202720y

DO - 10.1021/nl202720y

M3 - Article

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AN - SCOPUS:80054020808

SN - 1530-6984

VL - 11

SP - 4107

EP - 4112

JO - Nano Letters

JF - Nano Letters

IS - 10

ER -

Electrical transport properties of oligothiophene-based molecular films studied by current sensing atomic force microscopy

Abstract

Keywords

ASJC Scopus subject areas

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