skip to main content

SciTech ConnectSciTech Connect

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

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