Carotene as a molecular wire: Conducting atomic force microscopy

G. Leatherman; E. N. Durantini; D. Gust; Thomas Moore; Ana Moore; S. Stone; Z. Zhou; Peter Rez; Y. Z. Liu; Stuart Lindsay

doi:10.1021/jp9831278

Carotene as a molecular wire: Conducting atomic force microscopy

G. Leatherman, E. N. Durantini, D. Gust, Thomas Moore, Ana Moore, S. Stone, Z. Zhou, Peter Rez, Y. Z. Liu, Stuart Lindsay

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

219 Scopus citations

Abstract

A conducting atomic force microscope was used to measure the electrical properties of carotenoid molecules attached to a gold electrode. The thiolated carotene molecules were embedded in insulating n-alkanethiol self-assembled monolayers. At a contact force of a few nanoNewtons, a carotenoid molecule behaves ohmically with a resistance of approximately 4.2 ± 0.7 GΩ, over a million times more conductive than an alkane chain of similar length. Modes of electron transport are discussed.

Original language	English (US)
Pages (from-to)	4006-4010
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	103
Issue number	20
DOIs	https://doi.org/10.1021/jp9831278
State	Published - May 20 1999

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1021/jp9831278

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abstract = "A conducting atomic force microscope was used to measure the electrical properties of carotenoid molecules attached to a gold electrode. The thiolated carotene molecules were embedded in insulating n-alkanethiol self-assembled monolayers. At a contact force of a few nanoNewtons, a carotenoid molecule behaves ohmically with a resistance of approximately 4.2 ± 0.7 GΩ, over a million times more conductive than an alkane chain of similar length. Modes of electron transport are discussed.",

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T2 - Conducting atomic force microscopy

AU - Leatherman, G.

AU - Durantini, E. N.

AU - Gust, D.

AU - Moore, Thomas

AU - Moore, Ana

AU - Stone, S.

AU - Zhou, Z.

AU - Rez, Peter

AU - Liu, Y. Z.

AU - Lindsay, Stuart

PY - 1999/5/20

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AB - A conducting atomic force microscope was used to measure the electrical properties of carotenoid molecules attached to a gold electrode. The thiolated carotene molecules were embedded in insulating n-alkanethiol self-assembled monolayers. At a contact force of a few nanoNewtons, a carotenoid molecule behaves ohmically with a resistance of approximately 4.2 ± 0.7 GΩ, over a million times more conductive than an alkane chain of similar length. Modes of electron transport are discussed.

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Carotene as a molecular wire: Conducting atomic force microscopy

Abstract

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