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Maier J, Pärs M, Weller T, et al. Deliberate Switching of Single Photochromic Triads. Sci Rep. 2017;7:41739doi: 10.1038/srep41739.
Maier, J., Pärs, M., Weller, T., Thelakkat, M., & Köhler, J. (2017). Deliberate Switching of Single Photochromic Triads. Scientific reports, 741739. https://doi.org/10.1038/srep41739
Maier, Johannes, et al. "Deliberate Switching of Single Photochromic Triads." Scientific reports vol. 7 (2017): 41739. doi: https://doi.org/10.1038/srep41739
Maier J, Pärs M, Weller T, Thelakkat M, Köhler J. Deliberate Switching of Single Photochromic Triads. Sci Rep. 2017 Jan 31;7:41739. doi: 10.1038/srep41739. PMID: 28139764; PMCID: PMC5282491.
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Sci Rep. 2017 Jan 31;7:41739. doi: 10.1038/srep41739.

Deliberate Switching of Single Photochromic Triads.

Scientific reports

Johannes Maier, Martti Pärs, Tina Weller, Mukundan Thelakkat, Jürgen Köhler

Affiliations

  1. Experimental Physics IV, University of Bayreuth, 95440 Bayreuth, Germany.
  2. Applied Functional Polymers, University of Bayreuth, 95440 Bayreuth, Germany.

PMID: 28139764 PMCID: PMC5282491 DOI: 10.1038/srep41739

Abstract

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.

Conflict of interest statement

The authors declare no competing financial interests.

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