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    Promising Piezoelectric Properties of New ZnO@Octadecylamine Adduct

    Year: 2015

    Journal: JOURNAL OF PHYSICAL CHEMISTRY C, Vol. 119, p 20143-20149, 20170208

    Authors: Bettini, Simona; Pagano, Rosanna; Bonfrate, Valentina; Maglie, Emanuela; Manno, Daniela; Serra, Antonio; Valli, Ludovico; Giancane, Gabriele

    Organizations: Univ Salento, Dept Biol & Environm Sci & Technol, I-73100 Lecce, Italy; Univ Salento, Dept Engn Innovat, I-73100 Lecce, Italy; Univ Salento, Dept Cultural Heritage, I-73100 Lecce, Italy

    A supramolecular adduct formed by the interaction among octadecylamine (ODA) and zinc oxide nanostructures was promoted. A stable dispersion of the ZnO@ODA adduct was obtained and characterized by means of thermogravimetric analysis and infrared and Raman spectroscopy. Then, the supramolecular adduct was spread at the air/water interface of a Langmuir trough. The presence of octadecylamine gave amphiphilic features to the ZnO@ODA adduct that was transferred from the air/water interface to solid substrates by Langmuir Schaefer (LS) method. The transferred film was characterized by tunnel electron microscopy that highlighted rectangular well-shaped structures assembled by nanostructure of ZnO arranged in an ODA matrix. Piezoelectric feature of large LS film (1 cm(2)) was tested and a very promising response was observed as a consequence of the application of a pressure of 1 kPa.