Hydrothermally grown rutile titanium dioxide nanostructures with various morphologies

• Published in: Materials science in semiconductor processing 2019-12, Vol.104, p.104676, Article 104676
• Main Authors: Issar, Sheetal, Mahapatro, Ajit K.
• Format: Article
• Language: English
• Subjects: Fluorine doped tin oxide (FTO); Hydrothermal method and autoclave chamber; Titanium dioxide nanostructures (TiO2-NSs)
• ISSN: 1369-8001; 1873-4081
• DOI: 10.1016/j.mssp.2019.104676

One-dimension (1D) titanium dioxide nanostructures (TiO2-NSs) of different shape and sizes including laterally grown thin nanowire network (NW), vertically stranded nanorods (NRs), and nanoflowers are grown over fluorine doped tin oxide (FTO) coated glass substrate by following one-step hydrothermal method. The illustration of optimal TiO2-NSs in various morphologies and alignments are achieved by controlling single growth parameter of either reaction temperature (TH) or volume of the precursor solution (VS%), during the hydrothermal process. The electron microscopic, crystallographic, and spectroscopic analysis for the resulting 1D nanostructures exhibit prominent rutile phase for all the TiO2-NSs. Increase in the rate of reaction with TH and availability of additional materials contents with VS% favor rapid and substantial growth of nanostructures in various shapes and sizes. Optimally grown, uniformly distributed, densely packed, and vertically aligned nanorod arrays (NRAs) with increased width and length are observed on FTO substrate placed vertically on the bottom portion inside the Teflon container with VS% more than 80% and processed by maintaining the hydrothermal reaction at 180 °C.