Stepwise "dark Photoswitching" of Photochromic Dimers in a Junction

Stine T. Olsen; Thorsten Hansen; Mogens Brøndsted Nielsen; Mark A Ratner; Kurt V. Mikkelsen

doi:10.1021/acs.jpcc.6b10410

Stepwise "dark Photoswitching" of Photochromic Dimers in a Junction

Stine T. Olsen, Thorsten Hansen, Mogens Brøndsted Nielsen, Mark A Ratner, Kurt V. Mikkelsen

Northwestern University

Research output: Contribution to journal › Article

2 Citations (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.

Original language	English
Pages (from-to)	3163-3170
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	121
Issue number	6
DOIs	https://doi.org/10.1021/acs.jpcc.6b10410
Publication status	Published - Feb 16 2017

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/acs.jpcc.6b10410

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Olsen, S. T., Hansen, T., Nielsen, M. B., Ratner, M. A., & Mikkelsen, K. V. (2017). Stepwise "dark Photoswitching" of Photochromic Dimers in a Junction. Journal of Physical Chemistry C, 121(6), 3163-3170. https://doi.org/10.1021/acs.jpcc.6b10410

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