Abstract：
:Fabrication of uniform vertically-aligned titanium dioxide nanorods (TiO2 NRs) was achieved by hydrothermal growth on a fluorine-doped tin oxide (FTO) glass substrate. The substrate was coated by a TiO2 seed layer composed of titanium (IV) butoxide (TBO) as a precursor in an HCl solution. To reduce the amount of toxic substances used in this work, a minimal amount of HCl was used. On a larger scale, this method would require less precursor and therefore be a cost-savings. The aim of the present work is to achieve high crystalline orientations of TiO2 NRs for low quantities of both TBO precursor and HCl solutions. Results showed that the 0.7% TBO TiO2 NRs after 1.5 h of hydrothermal treatment exhibited the optimal crystalline orientation along [001] while the (002) plane is the dominant facet. The results demonstrate high transmittance of visible light and well-formed crystalline structures that offer a fast electron pathway along the length of the TiO2 NRs with less grain boundaries. Lastly, TiO2 NRs and their growth mechanism are discussed. This work offers a promising hydrothermal method for growing well-aligned TiO2 single-crystal NRs that can be employed in solar cell applications.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Prathan A,Sanglao J,Wang T,Bhoomanee C,Ruankham P,Gardchareon A,Wongratanaphisan Ddoi
10.1038/s41598-020-64510-6subject
Has Abstractpub_date
2020-05-15 00:00:00pages
8065issue
1issn
2045-2322pii
10.1038/s41598-020-64510-6journal_volume
10pub_type
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