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Title: Nanostructured zinc oxide sensors
Author: Alenezi, Mohammad Rabia
ISNI:       0000 0004 5348 2517
Awarding Body: University of Surrey
Current Institution: University of Surrey
Date of Award: 2014
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This thesis focuses on the hydrothermal synthesis of different ZnO nanostructures where rational control over their morphology allows for the optimization of the · different morphologies for a range of sensing applications. ZnO nanostructures with different dimensionalities have been synthesized through low temperature hydrothermal techniques. One dimensional ZnO NW s have been synthesized with and without the assistance of a seed layer, with a higher degree of control over their structure, morphology, density and dimensions. The large scale production of two dimensional ZnO nanodisks with a high fi.-action of exposed polar mcets have also been produced through using zinc counter ions with preferential capping capabilities on defined mcets. Furthermore, using a multistage hydrothermal synthesis, a range of three dimensional hierarchical ZnO nanostructures grown from initial mono-morphological ZnO nanostlUctmes/seeds has been reported. The growth parameters, such as the nutlient concentration, quantity of polyethylenirnine, growth time, and zinc counter ions have had a substantial impact on the morphological properties of the grown structures.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available