Issue 19, 2021

Polarization-dependent optical band gap energy of aligned semiconducting titanium oxide nanowire deposits

Abstract

Thin deposits of aligned semiconducting titanium oxide and of zinc oxide nanowires are prepared by grazing incidence spraying on transparent substrates. By measuring the transmittance of linearly polarized light of these anisotropic assemblies as compared to that of randomly oriented nanowires and of spherical nanoparticles, we find that titanium oxide nanowires exhibit an orientation-dependent variation of the apparent optical band gap energy at room temperature (>100 meV), depending on the direction of the polarization of the light with respect to the direction of alignment of the nanowires.

Graphical abstract: Polarization-dependent optical band gap energy of aligned semiconducting titanium oxide nanowire deposits

Supplementary files

Article information

Article type
Paper
Submitted
24 Feb 2021
Accepted
27 Apr 2021
First published
28 Apr 2021

Nanoscale, 2021,13, 8958-8965

Polarization-dependent optical band gap energy of aligned semiconducting titanium oxide nanowire deposits

M. Taner Camci, M. Pauly, C. Lefevre, C. Bouillet, M. Maaloum, G. Decher and D. Martel, Nanoscale, 2021, 13, 8958 DOI: 10.1039/D1NR01236C

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