Issue 14, 2020
From the journal:

Nanoscale

Mechanical switching of current–voltage characteristics in spiropyran single-molecule junctions†

Takashi Tamaki, ORCID logo a   Keigo Minode,b   Yuichi Numai,b   Tatsuhiko Ohto,b   Ryo Yamada, ORCID logo b   Hiroshi Masai, ORCID logo a   Hirokazu Tada*b  and  Jun Terao ORCID logo *a  

* Corresponding authors

a Department of Basic Science, Graduate School of Arts and Sciences, The university of Tokyo, Tokyo 153-8902, Japan
E-mail: cterao@mail.ecc.u-tokyo.ac.jp

b Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
E-mail: tada@molectronics.jp

Abstract

The electrical properties of a single-molecule junction of spiropyran are investigated through the break junction (BJ) method, and the current–voltage (I–V) characteristics are switched from rectified to symmetric through mechanical stimulus. This phenomenon indicates isomerization from spiropyran to merocyanine. In addition, an increase in the conductance associated with isomerization is observed.

Graphical abstract: Mechanical switching of current–voltage characteristics in spiropyran single-molecule junctions

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Article information

DOI
https://doi.org/10.1039/D0NR00277A
Article type
Communication
Submitted
10 Jan 2020
Accepted
17 Feb 2020
First published
18 Feb 2020

Nanoscale, 2020,12, 7527-7531

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Mechanical switching of current–voltage characteristics in spiropyran single-molecule junctions

T. Tamaki, K. Minode, Y. Numai, T. Ohto, R. Yamada, H. Masai, H. Tada and J. Terao, Nanoscale, 2020, 12, 7527 DOI: 10.1039/D0NR00277A

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