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Deliberate Switching of Single Photochromic Triads

Title data

Maier, Johannes ; Pärs, Martti ; Weller, Tina ; Thelakkat, Mukundan ; Köhler, Jürgen:
Deliberate Switching of Single Photochromic Triads.
In: Scientific Reports. Vol. 7 (2017) . - Art.Nr. 41739.
ISSN 2045-2322
DOI: https://doi.org/10.1038/srep41739

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Abstract in another language

Photochromic molecules can be reversibly converted between two bistable conformations by light, and are considered as promising building blocks in novel macromolecular structures for sensing and imaging techniques. We have studied individual molecular triads consisting of two strong fluorophores (perylene bisimide) that are covalently linked via a photochromic unit (dithienylcyclopentene) and distinguished between deliberate switching and spontaneous blinking. It was verified that the probability for observing deliberate light-induced switching of a single triad (rather than stochastic blinking) amounts to 0.8 +/- 0.1. In a few exceptional cases this probability can exceed 0.95. These numbers are sufficiently large for application in sensitive biosensing, and super-resolution imaging. This opens the possibility to develop devices that can be controlled by an external optical stimulus on a truly molecular length scale.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics IX - Spectroscopy of Soft Matter
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics IX - Spectroscopy of Soft Matter > Chair Experimental Physics IX - Spectroscopy of Soft Matter - Univ.-Prof. Dr. Jürgen Köhler
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers > Professor Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Research Institutions > Research Centres > Research Center for Bio-Macromolecules - BIOmac
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 11 Apr 2018 13:19
Last Modified: 30 Mar 2020 09:34
URI: https://eref.uni-bayreuth.de/id/eprint/43371