Abstract
TiO2 nanorods are synthesized by hydrothermal method using the commercially available TiO2 nanopowder (P25) as a precursor and characterized by field emission scanning electron microscope (FESEM), X- ray diffraction (XRD), and UV-Visible spectroscopy to study the surface morphology, phase structure and optical properties respectively. The FESEM images clearly show the formation and presence of TiO2 nanorods. The XRD results revealed that the crystallinity of TiO2 nanorods increases significantly which was confirmed by the variations in the diffraction peak intensity. The UV-Vis. absorption spectra show the redshift which leads to expansion of optical activities of TiO2 nanorods. The current versus voltage (I-V) characteristics exhibits the linear nature which confirms the easy flow of ions in TiO2 nanorods and hence the sensor behavior. From the obtained results, it can be stated that the TiO2 nanorods based sensor is suitable for Electroencephalogram (EEG) applications.
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