Journal
OPTICAL MATERIALS
Volume 55, Issue -, Pages 73-77Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2016.03.016
Keywords
Nonlinear optics; Materials; Photoluminescence; Multiphoton processes
Categories
Funding
- National Natural Science Foundation of China [11504072, 61405032]
- Natural Science Foundation of Heilongjiang Province [A201304, ZD201401]
- Scientific Research Fund of Heilongjiang Provincial Education Department [12541231]
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In-doped ZnO (IZO) nanowires were grown using the chemical vapour deposition method. The IZO nano wires have been characterized by scanning electronic microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) and UV-Visible spectroscopy. The PL results demonstrated a larger band-gap for the IZO nanowires in comparison to the undoped ZnO. Two major emission peaks were observed for the IZO nanowires, one originated from the free exciton recombination (ultraviolet emission) and another possibly related to the deep-level emission (visible emission). Furthermore, the nonlinear optical characteristic of the nanowires was studied using picosecond Z-scan technique. The experimental results show that the two and three-photon absorption coefficient of samples were able to be observed. These studies make the promising potential applications of the samples in the development of multifunctional all-optical devices. (C) 2016 Elsevier B.V. All rights reserved.
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