Photo-induced birefringence and surface ripples structures in As-S-Ag chalcogenide thin-films

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversité Laval-
Autor(es): dc.contributorUniversidade Estedual Paulista-
Autor(es): dc.creatorDouaud, Alexandre-
Autor(es): dc.creatorMessaddeq, Sandra Helena-
Autor(es): dc.creatorMessaddeq, Younès-
Data de aceite: dc.date.accessioned2022-08-04T22:08:05Z-
Data de disponibilização: dc.date.available2022-08-04T22:08:05Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2019-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jnoncrysol.2019.05.022-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/221302-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/221302-
Descrição: dc.descriptionPhoto-induced phenomena are investigated in new metastable Agx(As20S80)100-x chalcogenide thin-films prepared by the co-evaporation technique. Under irradiation using an Ar laser at 488 nm, periodic ripples structures formation are observed inside of the irradiated spot. With an increasing irradiation time or power density, a characteristic evolution of ripples is observed from a random structure to a series of generally aligned peaks-and-valleys periodic structures until a complete break-up of the film (laser dewetting). The scanning electron microscopy (SEM) of irradiated areas shows periodic ripples are aligned perpendicularly to the electric field vector of the incident light. Moreover, photo-induced birefringence (PIB) is observed during ripples formation. The kinetics of structural changes during the irradiation of the films is analysed using Raman spectroscopy. The molecular rearrangement from sulphur-cis toward sulphur-trans through irradiation is proposed to explain the experimentally observed PIB.-
Descrição: dc.descriptionCanada Foundation for Innovation-
Descrição: dc.descriptionFonds de Recherche du Québec - Nature et Technologies-
Descrição: dc.descriptionNatural Sciences and Engineering Research Council of Canada-
Descrição: dc.descriptionUniversité Laval-
Descrição: dc.descriptionUniversidade Estadual Paulista-
Descrição: dc.descriptionCentre d'Optique Photonique et Laser Université Laval, 2375 rue de la Terrasse-
Descrição: dc.descriptionInstituto de Química Universidade Estedual Paulista-
Idioma: dc.languageen-
Relação: dc.relationJournal of Non-Crystalline Solids-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectChalcogenide-
Palavras-chave: dc.subjectGlass-
Palavras-chave: dc.subjectPhoto-induced birefringence-
Palavras-chave: dc.subjectSilver-
Palavras-chave: dc.subjectThin-films-
Título: dc.titlePhoto-induced birefringence and surface ripples structures in As-S-Ag chalcogenide thin-films-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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