Photoswitchable Organic Nanofibers

Authors

  • F. Di Benedetto,

    1. NNL, National Nanotechnology Laboratory, Istituto Nazionale di Fisica della Materia-Consiglio Nazionale delle Ricerche, via Arnesano, 73100 Lecce (Italy)
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  • E. Mele,

    1. NNL, National Nanotechnology Laboratory, Istituto Nazionale di Fisica della Materia-Consiglio Nazionale delle Ricerche, via Arnesano, 73100 Lecce (Italy)
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  • A. Camposeo,

    1. NNL, National Nanotechnology Laboratory, Istituto Nazionale di Fisica della Materia-Consiglio Nazionale delle Ricerche, via Arnesano, 73100 Lecce (Italy)
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  • A. Athanassiou,

    1. NNL, National Nanotechnology Laboratory, Istituto Nazionale di Fisica della Materia-Consiglio Nazionale delle Ricerche, via Arnesano, 73100 Lecce (Italy)
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  • R. Cingolani,

    1. NNL, National Nanotechnology Laboratory, Istituto Nazionale di Fisica della Materia-Consiglio Nazionale delle Ricerche, via Arnesano, 73100 Lecce (Italy)
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  • D. Pisignano

    1. NNL, National Nanotechnology Laboratory, Istituto Nazionale di Fisica della Materia-Consiglio Nazionale delle Ricerche, via Arnesano, 73100 Lecce (Italy)
    2. Istituto Superiore di Formazione Interdisciplinare ISUFI, Università di Lecce, via Arnesano, 73100 Lecce (Italy)
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  • We gratefully acknowledge financial support from the Regional Strategic Project “Ponamat” and R. Stabile for the SEM investigation.

Abstract

original image

A photoswitchable nanomaterial is presented, electrospun organic nanofibers based on 1',3'-dihydro-1',3',3'-trimethyl-6-nitrospiro [2H-1-benzopyran-2,2'-(2H)-indole]. The switching properties of the nanofibers were investigated by studying the evolution of absorbance with different UV exposure times, photoluminescence lifetime, cyclic photoisomerization, and reversible wettability. The unique potentialities of photoswitchable nanofibers for achieving enhanced control of surface wettability are shown.

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