4.7 Article

An electric field induced reversible single-molecule fluorescence switch

Journal

CHEMICAL COMMUNICATIONS
Volume 51, Issue 34, Pages 7368-7371

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc00850f

Keywords

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Funding

  1. 973 Program [2012CB921603]
  2. 863 Program [2011AA010801]
  3. Natural Science Foundation of China [11174187, 10934004, 11204166, 11404200]
  4. Doctoral Foundation of the Education Ministry of China [20121401120016]
  5. PCSIRT [IRT13076]

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We report that by applying an electric field to a single squaraine-derived rotaxane (SR) molecule on bare glass, the fluorescence can be completely quenched. The molecule undergoes a reversible fluorescence switch between a zero-field on'' state and a high-field off'' state, which is attributed to intramolecular electron transfer within the SR molecule.

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