# Conductance Switching in an Asymmetric Single-Molecule Junction

https://mdr.nims.go.jp/datasets/0dcbb554-a163-44af-848a-f0a4df538503

## File

- [登録用.pdf](https://mdr.nims.go.jp/filesets/750c10cf-97a9-4fe2-b1c3-9016b636c8ee/download) ([Detail](https://mdr.nims.go.jp/filesets/750c10cf-97a9-4fe2-b1c3-9016b636c8ee.md))

## Id

0dcbb554-a163-44af-848a-f0a4df538503

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-05T04:42:17.914747Z

## Updated at

2025-11-06T03:30:22.613397Z

## Published at

2025-11-06T03:24:47.873452Z

## Doi

https://doi.org/10.48505/nims.5855

## First published url

https://doi.org/10.1021/acsami.5c14847

## Date published

2025-10-13

## Recorded date published



## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Conductance Switching in an Asymmetric Single-Molecule Junction
  title_type: original
  lang: en

## Description

- description: 'Electric switching in a single-molecule junction based on the asymmetric
    C60 pyrrolidine tris-acid (CPTA) molecule was demonstrated using nanogap electrodes
    spin-coated with a CPTA thin film. Among the embedded molecules, those closest
    to the cathode were preferentially activated during two-terminal conductance measurements,
    exhibiting reproducible bistable switching between low- and high-conductance states
    at room temperature. The CPTA molecule was anchored to the cathode via a carboxyl
    ligand, while the opposing electrode was positioned to allow modulation of the
    molecule–electrode distance by an applied bias voltage. This configuration enabled
    two distinct transport regimes: metal–fullerene conduction in the high-conductance
    state and through-space tunneling across a metal–CPTA–vacuum–metal junction in
    the low-conductance state. Analysis of the high-conductance state using the single-level
    tunneling transport model confirmed that charge transport occurred through a single
    molecule, despite the film-based fabrication. In the low-conductance state, transition
    voltage spectroscopy revealed that the junction asymmetry parameter was strongly
    dependent on the through-space distance between the fullerene cage and the opposing
    electrode, offering insight into structural modulation during switching. '
  description_type: abstract
  lang: und

## Creator

- name: Masato Takei
  role: author
  orcid: https://orcid.org/0000-0002-3522-0033
- name: Akira Takatsuki
  role: author
- name: Katsunori Wakabayashi
  role: author
  orcid: https://orcid.org/0000-0002-9147-9939
- name: Satoshi Kaneko
  role: author
  orcid: https://orcid.org/0000-0002-0351-6681
- name: Hiroshi Suga
  role: author
  orcid: https://orcid.org/0000-0003-4333-4898
- name: Yasuhisa Naitoh
  role: author
  orcid: https://orcid.org/0000-0003-2431-9625
- name: Kazuhito Tsukagoshi
  role: author
  orcid: https://orcid.org/0000-0001-9710-2692

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: fullerene
  schema: not_defined
- subject: Single-molecule device
  schema: not_defined
- subject: transition voltage spectroscopy
  schema: not_defined
- subject: single-level transport model
  schema: not_defined
- subject: C60 pyrrolidine tris-acid
  schema: not_defined

## Rights

- description: This document is the unedited Author’s version of a Submitted Work
    that was subsequently accepted for publication in ACS Applied Materials & Interfaces,
    copyright ©  2025 American Chemical Society after peer review. To access the final
    edited and published work see https://doi.org/10.1021/acsami.5c14847.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ACS Applied Materials & Interfaces
  issn: '19448244'
  volume: '17'
  issue: '42'
  article_number: acsami.5c14847

## Conference



## Related item



## Funding

- identifier: 20K05291
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: 750c10cf-97a9-4fe2-b1c3-9016b636c8ee
  filename: 登録用.pdf
  content_type: application/pdf
  size: 1326974
  md5: e4e06aaaee6620a31946e861d3c9c3a8

## Thumbnail

fileset_id: 750c10cf-97a9-4fe2-b1c3-9016b636c8ee
filename: 登録用.pdf