Formation of b-Bi2O3 and d-Bi2O3 during laser irradiation of Bi films studied in-situ by spatially resolved Raman spectroscopy

Please use this identifier to cite or link to this item: http://ri.uaemex.mx/handle20.500.11799/80053

Title:	Formation of b-Bi2O3 and d-Bi2O3 during laser irradiation of Bi films studied in-situ by spatially resolved Raman spectroscopy
Keywords:	Oxide materials;Laser processing;Phase transitions;Inelastic light scattering;info:eu-repo/classification/cti/2
Publisher:	Journal of Alloys and Compounds
Project:	DOI;http://dx.doi.org/10.1016/j.jallcom.2017.06.263
Description:	The formation of different phases of Bi2O3 induced by laser irradiation of Bi films has been assessed in situ by micro-Raman spectroscopy as a function of laser wavelength, power density and irradiation time. Raman mapping of the irradiated samples enabled a spatially-resolved study of the distribution of the formed Bi2O3 phases. Red laser (633 nm) irradiation was found to induce the appearance of b-Bi2O3, within a certain range of power densities, by diffusion-controlled processes. In contrast, ultraviolet (UV, 325 nm) laser irradiation, above a certain power density threshold, initially induces the formation of both b and d-Bi2O3 phases. The amount of the produced d-Bi2O3 phase increases by increasing the irradiation time, while that of the b phase follows the opposite trend. UV laser irradiation seems to be a suitable method to produce room temperature stable d-Bi2O3 patterns on Bi films
URI:	http://ri.uaemex.mx/handle20.500.11799/80053
Other Identifiers:	http://hdl.handle.net/20.500.11799/80053
Rights:	info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0
Appears in Collections:	Producción

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