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Controllable ZnO nanostructures evolution via synergistic pulsed laser ablation and hydrothermal methods

Abbas, Khaldoon N. and Bidin, Noriah and Sabry, Raad S. (2016) Controllable ZnO nanostructures evolution via synergistic pulsed laser ablation and hydrothermal methods. Ceramics International, 42 (12). pp. 13535-13546. ISSN 0272-8842

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Official URL: http://dx.doi.org/10.1016/j.ceramint.2016.05.146

Abstract

We report the morphology-controlled ZnO nanostructures (ZNSs) evolution synthesized via a novel and facile technique at different growth times, where the pulse laser ablation in liquid (PLAL) is creatively combined with hydrothermal (H) method (hereafter called PLAL-H technique). Four types of ZNSs with varying sizes and shapes such as tapers, multipods, flowers, and hollow flowers are produced on Si substrate via PLAL-H technique. Furthermore, multipod- and flower-like ZNSs are grown using direct hydrothermal method to compare them with the one obtained via synergistic effects of PLAL-H method. This catalyst-free fabrication method is not only cost-effective but greatly useful for the rapid production of different quality of ZNSs at low temperature. ZNSs synthesized under prolonged growth time (60 min) exhibited structural deformation. Growth technique and time dependent morphology, structure, composition, and optical properties of these as-grown ZNSs are characterized using FESEM, X-ray diffraction, FTIR, photoluminescence, and UV–vis measurements. Synthesized ZNSs revealed excellent crystallinity and growth process dependent variation in the physical and optical features. The ZNSs growth mechanism is understood. Excellent features of the results demonstrate that this synergized new growth technique may constitute a basis for modifying the morphology, sizes, and optical properties of ZNSs in a controllable manner useful for diverse applications.

Item Type:Article
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:69089
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Nov 2017 12:26
Last Modified:20 Nov 2017 16:52

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