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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Femtosecond-laser-irradiation-induced structural organization and crystallinity of Bi2WO6

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Author(s):
Pinatti, Ivo M. [1] ; Gouveia, Amanda F. [1] ; Donate-Buendia, C. [2] ; Minguez-Vega, Gladys [2] ; Andres, Juan [3] ; Longo, Elson [1]
Total Authors: 6
Affiliation:
[1] Fed Univ Sao Carlos UFSCar, LIEC, CDMF, POB 676, BR-13565905 Sao Carlos - Brazil
[2] Univ Jaume 1, Inst Noves Tecnol Imatge INIT, GROC, Castellon de La Plana 12071 - Spain
[3] Univ Jaume 1, Dept Analyt & Phys Chem, Castellon de La Plana 12071 - Spain
Total Affiliations: 3
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 10, n. 1 MAR 12 2020.
Web of Science Citations: 0
Abstract

Controlling the structural organization and crystallinity of functional oxides is key to enhancing their performance in technological applications. In this work, we report a strong enhancement of the structural organization and crystallinity of Bi2WO6 samples synthetized by a microwave-assisted hydrothermal method after exposing them to femtosecond laser irradiation. X-ray diffraction, UV-vis and Raman spectroscopies, photoluminescence emissions, energy dispersive spectroscopy, field emission scanning electron microscopy, and transmission electron microscopy were employed to characterize the as-synthetized samples. To complement and rationalize the experimental results, first-principles calculations were employed to study the effects of femtosecond laser irradiation. Structural and electronic effects induced by femtosecond laser irradiation enhance the long-range crystallinity while decreasing the free carrier density, as it takes place in the amorphous and liquid states. These effects can be considered a clear cut case of surface-enhanced Raman scattering. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC