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Photoluminescent hierarchical Zno micro‐flower and its surface wettability
Author(s) -
Ji X. B.,
Lu W. C.,
Ma H. P.
Publication year - 2012
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201200276
Subject(s) - photoluminescence , materials science , fourier transform infrared spectroscopy , chemical engineering , wetting , hydrothermal circulation , scanning electron microscope , thermogravimetry , nano , spectroscopy , nanotechnology , optoelectronics , composite material , physics , quantum mechanics , engineering
The flower‐like ZnO with micro‐nano hierarchical structure is successfully obtained by a simple hydrothermal synthesis, using sodium dodecyl benzene sulfonate (SDBS) as a structure direct agent. The resulted ZnO micro‐flowers are very uniform in morphology with particle sizes around 1 µm. A number of techniques, including X‐ray diffraction (XRD), field emission scan electron microscopy (FESEM), energy‐dispersive spectroscopy (EDS), fourier transform infrared (FTIR) spectra and thermogravimetry analysis (TGA), are used to characterize the obtained ZnO. The self‐assemble of ZnO nano‐sheets under the direction of SDBS leads to the formation of ZnO micro‐flowers. The room temperature photoluminescence property of the obtained flower‐like ZnO exhibits a broad visible light emission. The surface of as‐made ZnO shows a very hydrophilic property, while the special micro‐nano hierarchical structure enables the ZnO micro‐flower a superhydrophobic surface after modification of fluoroalkylsilane.