Open AccessGrowth Time Influence on Optical and Electrical Properties of TiO2 Nanorods Prepared via Hydrothermal Method
Author(s) -
Odai N. Salman,
Mukhlis M. Ismail,
Thamir Hassen Ali
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2114/1/012063
Subject(s) - nanorod , materials science , scanning electron microscope , tetragonal crystal system , band gap , fourier transform infrared spectroscopy , field emission microscopy , spectroscopy , analytical chemistry (journal) , rutile , titanium dioxide , tin dioxide , tin oxide , nanotechnology , optics , diffraction , doping , optoelectronics , chemical engineering , chemistry , crystallography , crystal structure , composite material , physics , engineering , chromatography , quantum mechanics , metallurgy
On a fluorine doped tin oxide (F: SnO 2 ) coated glass substrate, TiO 2 nanorod arrays (NRAs) were produced, successfully generated hydrothermally with an extended period of time (4, 6, 10, 20 and 30 h). Growth time and their effects on, morphological, structural, optical, and electrical characteristics of Titanium dioxide nanorods (NRs) were investigated by, Field Emission Scanning Electron Microscopy, X-ray Diffraction, Fourier Transform Infrared spectroscopy and ultraviolet-visible spectroscopy methods. X-ray diffraction revealed the development of TiO 2 nanorods in the tetragonal rutile structure of the produced TiO 2 NRs with the maximum (002) peak strength. NRs had a tetragonal shape with square top facets, according to images showed by a Field-Emission Scanning Electron Microscope (FESEM). The range of nanorods’ diameter were detected to be (40.05-225.26) nm, respectively based on FESEM measurements. While Fourier Transform Infrared spectroscopy (FT-IR) showed a wide, band about 2952 cm -1 . TiO 2 NRs’ optical and electrical characteristics have been investigated. According to optical absorption tests, there was no discernible change in band distance with increasing growth time. For TiO 2 nanorods primed with 4, 6, 10, 20 and 30 hours of reaction period, the band gap energy was found to be 3.14, 3.0, 3.12, 3.1, and 3.09 eV. The value of the energy gap reduced as reaction time increased from 4 to 30 hours, then increased as reaction time increased.