Variable-temperature study of the transport through a single octanethiol molecule

Rene Heimbuch, Hairong Wu, Avijit Kumar, Bene Poelsema, Peter Manfred Schön, Gyula J. Vancso, Henricus J.W. Zandvliet

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Working on a true molecular level is essential for advances in the field of molecular electronics. Techniques have to be perfected and new approaches have to be developed in order to characterize the properties of a single molecule. In this work we report temperature-dependent transport studies of a single octanethiol molecule trapped between the apex of a scanning tunneling microscope tip and a substrate. At each temperature the molecule is brought into contact by decreasing the gap between tip and substrate in a controlled way. At a positive sample bias the molecule jumps into contact upon approaching the substrate by 0.16±0.01 nm with respect to a fixed reference point defined by a sample bias of +1.5 V and a tunneling current of 0.5 nA. The conductance of octanethiol is temperature independent, demonstrating that either tunneling or ballistic transport is the main transport mechanism
Original languageEnglish
Article number075456
Pages (from-to)-
Number of pages4
JournalPhysical review B: Condensed matter and materials physics
Volume86
Issue number7
DOIs
Publication statusPublished - 2012

Fingerprint

Molecules
molecules
Substrates
Molecular electronics
Temperature
temperature
molecular electronics
Ballistics
ballistics
apexes
Microscopes
microscopes
Scanning
scanning

Keywords

  • IR-81158
  • METIS-287534

Cite this

@article{55b930f0e0b24a93b522b7efe66f5204,
title = "Variable-temperature study of the transport through a single octanethiol molecule",
abstract = "Working on a true molecular level is essential for advances in the field of molecular electronics. Techniques have to be perfected and new approaches have to be developed in order to characterize the properties of a single molecule. In this work we report temperature-dependent transport studies of a single octanethiol molecule trapped between the apex of a scanning tunneling microscope tip and a substrate. At each temperature the molecule is brought into contact by decreasing the gap between tip and substrate in a controlled way. At a positive sample bias the molecule jumps into contact upon approaching the substrate by 0.16±0.01 nm with respect to a fixed reference point defined by a sample bias of +1.5 V and a tunneling current of 0.5 nA. The conductance of octanethiol is temperature independent, demonstrating that either tunneling or ballistic transport is the main transport mechanism",
keywords = "IR-81158, METIS-287534",
author = "Rene Heimbuch and Hairong Wu and Avijit Kumar and Bene Poelsema and Sch{\"o}n, {Peter Manfred} and Vancso, {Gyula J.} and Zandvliet, {Henricus J.W.}",
year = "2012",
doi = "10.1103/PhysRevB.86.075456",
language = "English",
volume = "86",
pages = "--",
journal = "Physical review B: Condensed matter and materials physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "7",

}

Variable-temperature study of the transport through a single octanethiol molecule. / Heimbuch, Rene; Wu, Hairong; Kumar, Avijit; Poelsema, Bene; Schön, Peter Manfred; Vancso, Gyula J.; Zandvliet, Henricus J.W.

In: Physical review B: Condensed matter and materials physics, Vol. 86, No. 7, 075456, 2012, p. -.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Variable-temperature study of the transport through a single octanethiol molecule

AU - Heimbuch, Rene

AU - Wu, Hairong

AU - Kumar, Avijit

AU - Poelsema, Bene

AU - Schön, Peter Manfred

AU - Vancso, Gyula J.

AU - Zandvliet, Henricus J.W.

PY - 2012

Y1 - 2012

N2 - Working on a true molecular level is essential for advances in the field of molecular electronics. Techniques have to be perfected and new approaches have to be developed in order to characterize the properties of a single molecule. In this work we report temperature-dependent transport studies of a single octanethiol molecule trapped between the apex of a scanning tunneling microscope tip and a substrate. At each temperature the molecule is brought into contact by decreasing the gap between tip and substrate in a controlled way. At a positive sample bias the molecule jumps into contact upon approaching the substrate by 0.16±0.01 nm with respect to a fixed reference point defined by a sample bias of +1.5 V and a tunneling current of 0.5 nA. The conductance of octanethiol is temperature independent, demonstrating that either tunneling or ballistic transport is the main transport mechanism

AB - Working on a true molecular level is essential for advances in the field of molecular electronics. Techniques have to be perfected and new approaches have to be developed in order to characterize the properties of a single molecule. In this work we report temperature-dependent transport studies of a single octanethiol molecule trapped between the apex of a scanning tunneling microscope tip and a substrate. At each temperature the molecule is brought into contact by decreasing the gap between tip and substrate in a controlled way. At a positive sample bias the molecule jumps into contact upon approaching the substrate by 0.16±0.01 nm with respect to a fixed reference point defined by a sample bias of +1.5 V and a tunneling current of 0.5 nA. The conductance of octanethiol is temperature independent, demonstrating that either tunneling or ballistic transport is the main transport mechanism

KW - IR-81158

KW - METIS-287534

U2 - 10.1103/PhysRevB.86.075456

DO - 10.1103/PhysRevB.86.075456

M3 - Article

VL - 86

SP - -

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

SN - 1098-0121

IS - 7

M1 - 075456

ER -