Abstract
Zinc oxide nanoparticles were synthesized via Chemical Bath Deposition (CBD) method with and without high voltage electric field which is known as electrohydrodynamic atomization route. Three main different jet modes were selected with adjusting the applied voltages for decreasing the size of reaction media, including: Dripping, Cone Jet (3.28 kV) and Multi jet (7.12 kV). The products were characterized by means of powder X-ray diffraction (XRD), Transmission electron microscopy (TEM), UV–Vis absorption spectroscopy and photoluminescence (PL). The prepared nanoparticles have different morphologies in each mode. Smaller nanoparticles were produced when the modes were changed from dripping to cone jet and multi jet modes. By decrease in particle size a significance blue shift occurs in UV-absorption spectra of prepared samples. The driven band gap of the particles in each mode are: 3.31, 3.35 and 3.415 eV for dripping, cone jet and multi jet modes, respectively. Also based on PL results, all samples show the near-band-edge peaks in 433 nm. By decrease in size of produced nanoparticles a reduction in emitted light intensity occurs in the samples.
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Tabriz, M.F., Mehr, H.R.R., Moradi, O.M. et al. Linear optical properties of ZnO nano particles synthesized by electrohydrodynamics atomization (EHDA) method. J Mater Sci: Mater Electron 23, 384–389 (2012). https://doi.org/10.1007/s10854-011-0428-4
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DOI: https://doi.org/10.1007/s10854-011-0428-4