Título:
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Formation of beta-Bi?O? and delta-Bi?O? during laser irradiation of Bi films studied in-situ by spatially resolved Raman spectroscopy
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Autores:
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Díaz-Guerra Viejo, Carlos ;
Almodóvar, P. ;
Camacho López, M. ;
Camacho López, S. ;
Piqueras de Noriega, Javier
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science SA, 2017-10-05
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Dimensiones:
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application/pdf
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Nota general:
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cc_by_nc_nd
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física de materiales
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Materia = Ciencias: Física: Física del estado sólido
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Tipo = Artículo
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Resumen:
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The formation of different phases of Bi?O? 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 Bi?O? phases. Red laser (633 nm) irradiation was found to induce the appearance of ß- Bi?O?, 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 beta and ?- Bi?O? phases. The amount of the produced ?- Bi?O? phase increases by increasing the irradiation time, while that of the beta phase follows the opposite trend. UV laser irradiation seems to be a suitable method to produce room temperature stable ?- Bi?O? patterns on Bi films.
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En línea:
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https://eprints.ucm.es/45288/1/PiquerasJ330%20POST%2BCC%2BEMB%2006_11_2019.pdf
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