Piezochromism: Unique Piezochromic Fluorescence Behavior of Dicyanodistyrylbenzene Based Donor–Acceptor–Donor Triad: Mechanically Controlled Photo-Induced Electron Transfer (eT) in Molecular Assemblies (Adv. Mater. 40/2012)

Authors

  • Min Sang Kwon,

    1. Center for Supramolecular Optoelectronic Materials and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul 151-744, Korea
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  • Johannes Gierschner,

    1. Madrid Institute for Advanced Studies, IMDEA Nanoscience, Calle Faraday 9, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
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  • Seong-Jun Yoon,

    1. Center for Supramolecular Optoelectronic Materials and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul 151-744, Korea
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  • Soo Young Park

    Corresponding author
    1. Center for Supramolecular Optoelectronic Materials and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul 151-744, Korea
    • Center for Supramolecular Optoelectronic Materials, and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul 151-744, Korea.
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Abstract

original image

A donor–acceptor–donor triad, which exhibits fluorescence on-off switching with high contrast ratio (ca. 1000) in response to mechanical stimulus in the solid state, is reported by Soo Young Park and co-workers on page 5487. This system provides a very unique example of high contrast fluorescence switching that is driven by a mechanical force controlled photo-induced electron transfer (eT) in molecular assemblies.

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