Issue 7, 2023

Structural investigation of titanium oxide nanowires with unconventional optoelectronic behaviour

Abstract

Grazing incidence wide angle X-ray scattering measurements on aligned titanium oxide nanowires displaying anisotropic optical–electronic properties are carried out. Elemental and thermal analyses provide a chemical composition corresponding to H2Ti3O7·nH2O with n ≈ 1 while the crystallographic data indicate a monoclinic cell with a lamellar substructure. Cell parameters are close to those of H2Ti3O7 notwithstanding a doubling of the lattice in the layer plane. A comparison of the band gap energy values and the electronic transition modes between the two polymorphs displays differences that could be ascribed to the structural variation.

Graphical abstract: Structural investigation of titanium oxide nanowires with unconventional optoelectronic behaviour

Article information

Article type
Paper
Submitted
04 Nov 2022
Accepted
10 Jan 2023
First published
10 Jan 2023

Phys. Chem. Chem. Phys., 2023,25, 5648-5655

Structural investigation of titanium oxide nanowires with unconventional optoelectronic behaviour

B. Heinrich, P. Kékicheff, A. Hemmerle, P. Fontaine and D. Martel, Phys. Chem. Chem. Phys., 2023, 25, 5648 DOI: 10.1039/D2CP05181H

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