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Title: Highly conductive single naphthalene and anthracene molecular junction with well-defined conductance

Abstract

We performed electronic investigation on single acene molecular junctions bridging Au-electrodes in ultra-high vacuum conditions using mechanically controllable break junction technique. While the molecular junctions displayed various conductance values at 100 K, they exhibited well-defined high conductance values (∼0.3 G{sub 0}) at 300 K, which is close to that of metal atomic contact. Direct π-binding of the molecules to the Au-electrodes leads to the high conductivities at the metal-molecule interface. At the elevated temperature, single molecular junctions trapped in local metastable structures can be fallen into energetically preferential more stable state and thus we fabricated structurally well-defined molecular junctions.

Authors:
 [1];  [2]; ; ; ;  [1]
  1. Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 W4-10, Ookayama, Meguro-ku, Tokyo 152-8551 (Japan)
  2. (China)
Publication Date:
OSTI Identifier:
22395722
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTHRACENE; ELECTRIC CONDUCTIVITY; ELECTRIC CONTACTS; ELECTRODES; GOLD; INTERFACES; MOLECULES; NAPHTHALENE; SEMICONDUCTOR JUNCTIONS; TEMPERATURE DEPENDENCE; TRAPPING

Citation Formats

Liu, Chenyang, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, Kaneko, Satoshi, Komoto, Yuki, Fujii, Shintaro, E-mail: fujii.s.af@m.titech.ac.jp, and Kiguchi, Manabu, E-mail: kiguti@chem.titech.ac.jp. Highly conductive single naphthalene and anthracene molecular junction with well-defined conductance. United States: N. p., 2015. Web. doi:10.1063/1.4914501.
Liu, Chenyang, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, Kaneko, Satoshi, Komoto, Yuki, Fujii, Shintaro, E-mail: fujii.s.af@m.titech.ac.jp, & Kiguchi, Manabu, E-mail: kiguti@chem.titech.ac.jp. Highly conductive single naphthalene and anthracene molecular junction with well-defined conductance. United States. doi:10.1063/1.4914501.
Liu, Chenyang, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, Kaneko, Satoshi, Komoto, Yuki, Fujii, Shintaro, E-mail: fujii.s.af@m.titech.ac.jp, and Kiguchi, Manabu, E-mail: kiguti@chem.titech.ac.jp. Mon . "Highly conductive single naphthalene and anthracene molecular junction with well-defined conductance". United States. doi:10.1063/1.4914501.
@article{osti_22395722,
title = {Highly conductive single naphthalene and anthracene molecular junction with well-defined conductance},
author = {Liu, Chenyang and School of Materials Science and Engineering, Tsinghua University, Beijing 100084 and Kaneko, Satoshi and Komoto, Yuki and Fujii, Shintaro, E-mail: fujii.s.af@m.titech.ac.jp and Kiguchi, Manabu, E-mail: kiguti@chem.titech.ac.jp},
abstractNote = {We performed electronic investigation on single acene molecular junctions bridging Au-electrodes in ultra-high vacuum conditions using mechanically controllable break junction technique. While the molecular junctions displayed various conductance values at 100 K, they exhibited well-defined high conductance values (∼0.3 G{sub 0}) at 300 K, which is close to that of metal atomic contact. Direct π-binding of the molecules to the Au-electrodes leads to the high conductivities at the metal-molecule interface. At the elevated temperature, single molecular junctions trapped in local metastable structures can be fallen into energetically preferential more stable state and thus we fabricated structurally well-defined molecular junctions.},
doi = {10.1063/1.4914501},
journal = {Applied Physics Letters},
number = 10,
volume = 106,
place = {United States},
year = {Mon Mar 09 00:00:00 EDT 2015},
month = {Mon Mar 09 00:00:00 EDT 2015}
}