Dark Photoswitching Induces Coulomb Blockade Diamond Collapse
(2015) In Journal of Physical Chemistry C 119(27). p.14829-14833- Abstract
- A derivative of the photochromic molecule dihydroazulene (DHA) undergoes bias-induced switching into its vinylheptafulvene (VHF) conformation when inserted into a silver junction. This dark switching mechanism, which induces a collapse of the Coulomb blockade diamonds, is explained by quantum calculations on the molecular transport junction. Analysis of the nonequilibrium populations of molecular redox states explains the observed bias threshold. Predictions are made that another DHA derivative will not, in future experiments, exhibit bias-induced switching. Thus, the dark switching mechanism depends on the structure of the photoswitch. The methodology applies to any molecular junction and offers a versatile tool for answering mechanistic... (More)
- A derivative of the photochromic molecule dihydroazulene (DHA) undergoes bias-induced switching into its vinylheptafulvene (VHF) conformation when inserted into a silver junction. This dark switching mechanism, which induces a collapse of the Coulomb blockade diamonds, is explained by quantum calculations on the molecular transport junction. Analysis of the nonequilibrium populations of molecular redox states explains the observed bias threshold. Predictions are made that another DHA derivative will not, in future experiments, exhibit bias-induced switching. Thus, the dark switching mechanism depends on the structure of the photoswitch. The methodology applies to any molecular junction and offers a versatile tool for answering mechanistic questions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7783648
- author
- Olsen, Stine T. ; Hansen, Thorsten LU and Mikkelsen, Kurt V.
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physical Chemistry C
- volume
- 119
- issue
- 27
- pages
- 14829 - 14833
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000357964900002
- scopus:84936876208
- ISSN
- 1932-7447
- DOI
- 10.1021/acs.jpcc.5b00849
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- c60829a5-f27c-4900-95cd-e17485e2052b (old id 7783648)
- date added to LUP
- 2016-04-01 11:04:51
- date last changed
- 2022-01-26 05:10:51
@article{c60829a5-f27c-4900-95cd-e17485e2052b,
abstract = {{A derivative of the photochromic molecule dihydroazulene (DHA) undergoes bias-induced switching into its vinylheptafulvene (VHF) conformation when inserted into a silver junction. This dark switching mechanism, which induces a collapse of the Coulomb blockade diamonds, is explained by quantum calculations on the molecular transport junction. Analysis of the nonequilibrium populations of molecular redox states explains the observed bias threshold. Predictions are made that another DHA derivative will not, in future experiments, exhibit bias-induced switching. Thus, the dark switching mechanism depends on the structure of the photoswitch. The methodology applies to any molecular junction and offers a versatile tool for answering mechanistic questions.}},
author = {{Olsen, Stine T. and Hansen, Thorsten and Mikkelsen, Kurt V.}},
issn = {{1932-7447}},
language = {{eng}},
number = {{27}},
pages = {{14829--14833}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Journal of Physical Chemistry C}},
title = {{Dark Photoswitching Induces Coulomb Blockade Diamond Collapse}},
url = {{http://dx.doi.org/10.1021/acs.jpcc.5b00849}},
doi = {{10.1021/acs.jpcc.5b00849}},
volume = {{119}},
year = {{2015}},
}