Publication:
Hydrothermal growth of titania nanowires for SAW device sensing area
Hydrothermal growth of titania nanowires for SAW device sensing area
Date
2017
Authors
Mohd Rosydi Zakaria
Sh.Nadzirah S. Ayub
Mohd Hafiz Ismail
Shazlina Johari
Uda Hashim
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Research Projects
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Abstract
Synthesis of titania or titanium dioxide (TiO 2) is attracted to energy and environmental applications. Here, the growth of nanostructure TiO 2 nanowires on Si (100) substrates by using the two-step method. Different seed layers of TiO 2 were deposited by spin coating and annealing, followed by the growth of TiO 2 nanowires by using the hydrothermal method. The sol-gel technique was used in preparing the TiO 2 solution for the thin film deposition purpose. Acetic acid, hydrochloric acid and tris (2-aminoethyl) amine were used as a stabilizer to synthesize three different TiO 2 seed layers. The aim of this study was to understand the role of polycrystalline size on thin film towards the diameter of nanowires grown as a sensing area in Surface Acoustic Wave (SAW) Biosensor. The morphology and structure of the thin film and TiO 2 nanowires were characterized using X-Ray diffraction (XRD), scanning electron microscope
(SEM), field emission scanning electron microscope (FESEM) and atomic force microscopy (AFM).