Stepwise "Dark Photoswitching" of Photochromic Dimers in a Junction

Stine Tetzschner Olsen; Thorsten Hansen; Mogens Brøndsted Nielsen; Mark A. Ratner; Kurt Valentin Mikkelsen

doi:10.1021/acs.jpcc.6b10410

Stepwise "Dark Photoswitching" of Photochromic Dimers in a Junction

Stine Tetzschner Olsen, Thorsten Hansen, Mogens Brøndsted Nielsen, Mark A. Ratner, Kurt Valentin Mikkelsen

Kemisk Institut

2 Citationer (Scopus)

Abstract

Molecular photoswitches incorporated in a junction present a way to achieve light-controlled conductance switching by photoisomerization. Yet, the two isomers might also interconvert upon charging of the molecule if this results in a change in their relative energies. This behavior (current-induced switching) has been termed dark photoswitching and was observed for the dihydroazulene–vinylheptafulvene couple in a junction. In this theoretical study, we expand this concept to dimeric structures containing two dihydroazulene units linked through meta- or para-phenylene bridges and anchored to the electrodes through different linkers. In particular, we show how stepwise dark photoswitching can be achieved for certain redox states

Originalsprog	Engelsk
Tidsskrift	The Journal of Physical Chemistry Part C
Vol/bind	121
Udgave nummer	6
Sider (fra-til)	3163-3170
Antal sider	8
ISSN	1932-7447
DOI	https://doi.org/10.1021/acs.jpcc.6b10410
Status	Udgivet - 16 feb. 2017

Adgang til dokumentet

10.1021/acs.jpcc.6b10410

Citationsformater

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T1 - Stepwise "Dark Photoswitching" of Photochromic Dimers in a Junction

AU - Olsen, Stine Tetzschner

AU - Hansen, Thorsten

AU - Nielsen, Mogens Brøndsted

AU - Ratner, Mark A.

AU - Mikkelsen, Kurt Valentin

PY - 2017/2/16

Y1 - 2017/2/16

N2 - Molecular photoswitches incorporated in a junction present a way to achieve light-controlled conductance switching by photoisomerization. Yet, the two isomers might also interconvert upon charging of the molecule if this results in a change in their relative energies. This behavior (current-induced switching) has been termed dark photoswitching and was observed for the dihydroazulene–vinylheptafulvene couple in a junction. In this theoretical study, we expand this concept to dimeric structures containing two dihydroazulene units linked through meta- or para-phenylene bridges and anchored to the electrodes through different linkers. In particular, we show how stepwise dark photoswitching can be achieved for certain redox states

AB - Molecular photoswitches incorporated in a junction present a way to achieve light-controlled conductance switching by photoisomerization. Yet, the two isomers might also interconvert upon charging of the molecule if this results in a change in their relative energies. This behavior (current-induced switching) has been termed dark photoswitching and was observed for the dihydroazulene–vinylheptafulvene couple in a junction. In this theoretical study, we expand this concept to dimeric structures containing two dihydroazulene units linked through meta- or para-phenylene bridges and anchored to the electrodes through different linkers. In particular, we show how stepwise dark photoswitching can be achieved for certain redox states

U2 - 10.1021/acs.jpcc.6b10410

DO - 10.1021/acs.jpcc.6b10410

M3 - Journal article

SN - 1932-7447

VL - 121

SP - 3163

EP - 3170

JO - The Journal of Physical Chemistry Part C

JF - The Journal of Physical Chemistry Part C

IS - 6

ER -