Stepwise "Dark Photoswitching" of Photochromic Dimers in a Junction
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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 |
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Journal | The Journal of Physical Chemistry Part C |
Volume | 121 |
Issue number | 6 |
Pages (from-to) | 3163-3170 |
Number of pages | 8 |
ISSN | 1932-7447 |
DOIs | |
Publication status | Published - 2017 |
ID: 176370843