Hydrothermal Synthesis and Characterization of TiO2 Nanorod Array Grown on FTO Substrate
In the present study, TiO2 nanorod array (TiO2 NRA) structure was synthesized on FTO substrate using the hydrothermal method. The effect of hydrothermal temperature and growth time on the morphology of TiO2 NRA was studied in this work. Structural and morphological properties of synthesized TiO2 NRA were investigated using X-ray diffraction (XRD) and Field emission scanning electron microscope (FE-SEM). The optical properties were evaluated using UV–Vis spectroscopy, and fluorescence spectroscopy. From XRD, it was confirmed that synthesized TiO2 have rutile phase. FE-SEM study reveals that synthesized TiO2 nanorods have square shape and tetragonal structure having a size of 50 nm and length of 1 μm. The TiO2 nano-rod array has surface defects such as oxygen vacancies were confirmed by photoluminescence study.
KeywordsTiO2 Nano rod array Oxygen vacancies Hydrothermal
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