Robust, Transparent Hybrid Thin Films of Phase-Change Material Sb 2 S 3 Prepared by Electrophoretic Deposition
Résumé
Thin films of polyethyleneimine-stabilized Sb2S3 are prepared via electrophoretic deposition (EPD), showing strong adhesion between deposited layers and underlying substrate, with the films being crystallized via annealing. For amorphous films, thicknesses can be freely tuned from 0.2-1 μm, shrinking to 0.1-0.5 μm when crystallized, whilst retaining a crack-and defect-free surface, thus not impacting on their good stability, and maintaining their optical properties. Through UV-Vis spectroscopy and subsequent modelling of the obtained spectra, it was concluded that the materials after annealing showed a reduced band gap and a demonstrably increased refractive index (n) and carrier concentration. The use of EPD for this material shows the viability of rapidly creating stable thin films of phase-change materials.
Domaines
Chimie| Origine | Fichiers produits par l'(les) auteur(s) |
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