Thermo-optical response of layered Bi nanostructures produced by pulsed laser deposition

• Published in: Applied surface science Vol. 257; no. 12; pp. 5172 - 5174
• Main Authors: Jiménez de Castro, M., Serna, R., Marzoa, M.G., Castelo, A., Afonso, C.N., Haro-Poniatowski, E.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.04.2011; Elsevier
• Subjects: Aluminum oxide; Bi nanostructures; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Heating; Melting; Melting–solidification; Nanocomposites; Nanomaterials; Nanostructure; Physics; Pulsed laser deposition; Spectra; Thermal-optical properties; Bi nanostructures; Melting–solidification; Pulsed laser deposition; Thermal-optical properties; Melting; Phase transformations; Thermo-optical effects; Melting-solidification; Nanostructures; Film growth; Solidification
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2010.10.072

This work reports optical transmission changes in layered Bi nanostructures (NSs) upon heating–cooling cycles up to temperatures above the melting temperature. The nanostructured films prepared by pulsed laser deposition consist of Bi NSs with different characteristic sizes that are organised in layers and embedded in an amorphous Al 2O 3 host. The spectral dependence of the optical transmission as well as its changes upon heating are reported. The combination of Bi NSs layers with more than one characteristic size allows controlling the width of the melting–solidification transition. Eventually, it is shown how a multiple temperature thermo-optical film can be designed and prepared.