Journal
SMALL
Volume 15, Issue 29, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201804519
Keywords
2D polymers; aggregation-induced emission; Glaser-Hay coupling; luminescent materials
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Funding
- National Natural Science Foundation of China [21604046]
- National Young Thousand Talents Program, Shandong Provincial Natural Science Foundation, China [ZR2016XJ004]
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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.
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