Evolution of nanomechanical properties and crystallinity of individual titanium dioxide nanotube resonators

Stefano Stassi, Andrea Lamberti, Ignazio Roppolo, Alberto Casu, Stefano Bianco, Davide Scaiola, Andrea Falqui, Candido Fabrizio Pirri, Carlo Ricciardi

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Herein a complete characterization of single TiO2 nanotube resonator was reported for the first time. The modal vibration response analysis allows a non-invasive indirect evaluation of the mechanical properties of the TiO2 nanotube. The effect of post-grown thermal treatments on nanotube mechanical properties was investigated and carefully correlated to the chemico-physical parameters evolution. The Young's modulus of TiO2 nanotube linearly rises from 57 GPa up to 105 GPa for annealing at 600°C depending on the compositional and crystallographic evolution of the nanostructure. Considering the growing interest in single nanostructure devices, the reported findings allow a deeper understanding of the properties of individual titanium dioxide nanotubes extrapolated from their standard arrayed architecture.
Original languageEnglish (US)
Pages (from-to)085702
JournalNanotechnology
Volume29
Issue number8
DOIs
StatePublished - Jan 17 2018

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