Key Words:Conjugated polymers;Atomic force microscopy - Electron diffraction - Fluorescence - High resolution transmission electron microscopy - Polymer films - Scanning electron microscopy - Semiconducting films - Surface reactions - Transmission electron microscopy - X ray photoelectron spectroscopy
Abstract:A fully conjugated 2D fluorescent film containing a tetraphenylethene (TPE) unit is constructed by Glaser–Hay coupling reaction on the surface of copper foil. A large-area, freestanding fluorescent films with an average thickness 4.5 nm can be obtained through the strategy of solid–liquid interfacial synthesis. The film and the pore structure are characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS). High-resulution TEM and selected area electron diffraction (SAED) further confirm the dual pores structure with triangular- and hexagonal-shaped pores. The as-prepared 2D films exhibit excellent solid-state fluorescence emission arising from the confinement of TPE units.<br/> © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume:15
Issue:29
Translation or Not:no
