期刊
MATERIALS LETTERS
卷 130, 期 -, 页码 215-217出版社
ELSEVIER
DOI: 10.1016/j.matlet.2014.05.112
关键词
Sonochemical; Zinc oxide; Nanocrystalline materials; Electron microscopy
资金
- Council of Scientific and Industrial Research through MULTIFUN [CSC-0101]
- DST-CSIR Sensor Hub, Kolkata [GAP 03/32]
Zinc oxide (ZnO) nanostructures with controlled morphology have been synthesized by a facile sonochemical method using cetyltrimethylammonium bromide (cationic surfactant) as a structure directing agent. The influence of surfactant concentration on the evolution of morphology, from starletlike 3D structures to 2D flakes, has been systematically investigated. Room temperature formation of phase-pure ZnO crystals has been confirmed by X-ray diffraction (XRD). Field emissiom scanning electron microscopy (FESEM) reveals the dimensions of ZnO flakes, which are 200-400 nm wide and a few nanometre thick. Molecular fingerprints of the synthesized materials have been obtained by Fourier transform infrared spectroscopy (FTIR), while UV-vis spectroscopy estimates the bandgap of ZnO as 3.37 eV. (C) 2014 Elsevier B.V. All rights reserved.
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