Single-shot time resolved study of the photo-reversible phase transition induced in flakes of Ti3O5 nanoparticles at room temperature
Language
en
Article de revue
This item was published in
Chemical Physics Letters. 2014-07-21, vol. 608, p. 106-112
Elsevier
English Abstract
We have performed single-shot time-resolved reflectivity measurements of the photo-reversible phase transition between λ- and β-phases of Ti3O5 nanoparticles at room temperature. These phase transitions are induced using ...Read more >
We have performed single-shot time-resolved reflectivity measurements of the photo-reversible phase transition between λ- and β-phases of Ti3O5 nanoparticles at room temperature. These phase transitions are induced using nanosecond and millisecond laser pulses and are revealed by Raman spectroscopy. Upon nanosecond pulsed excitation, the λ- to β-phase transition is detected in about 900 ns, whereas the β- to λ-phase transition is noticed in less than 20 ns. The λ- to β-phase transition induced by quasi continuous wave laser happens on the millisecond time scale. We propose a scenario that accounts very well for the observed phenomena.Read less <
ANR Project
Vers une génération de Gel-Coats Intelligents : thermo- et/ou photosensibles - ANR-11-RMNP-0019
Origin
Hal imported