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Luminescent 3-hydroxyflavone nanocomposites with a tuneable refractive index for photonics and UV detection by plasma assisted vacuum deposition

 

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dc.creator Aparicio Rebollo, Francisco Javier es
dc.creator Alcaire Martín, María es
dc.creator Borrás Martos, Ana Isabel es
dc.creator González, Juan C. es
dc.creator López Arbeloa, Fernando es
dc.creator Blaszczyk-Lezak, Iwona Krystina es
dc.creator Rodríguez González-Elipe, Agustín es
dc.creator Barranco Quero, Ángel es
dc.date.accessioned 2018-04-24T10:49:48Z
dc.date.available 2018-04-24T10:49:48Z
dc.date.issued 2014
dc.identifier.citation Aparicio Rebollo, F.J., Alcaire Martín, M., Borrás Martos, A.I., González, J.C., López Arbeloa, F., Blaszczyk-Lezak, I.K.,...,Barranco Quero, Á. (2014). Luminescent 3-hydroxyflavone nanocomposites with a tuneable refractive index for photonics and UV detection by plasma assisted vacuum deposition. Journal of Materials Chemistry C 2, 6561-6573.
dc.identifier.issn 2050-7526 es
dc.identifier.uri https://hdl.handle.net/11441/73445
dc.description.abstract Luminescent organic-thin-films transparent in the visible region have been synthesized by a plasma assisted vacuum deposition method. The films have been developed for their implementation in photonic devices and for UV detection. They consist of a plasma polymeric matrix that incorporates 3-hydroxyflavone molecules characterized by absorption of UV radiation and emission of green light. The present work studies in detail the properties and synthesis of this kind of transparent and luminescent material. The samples were characterized by X-ray photoemission (XPS), infrared (FT-IR) and secondary ion mass (ToF-SIMS) spectroscopies; and their optical properties were analysed by UV-Vis absorption, fluorescence and ellipsometry (VASE) spectroscopies. The key factors controlling the optical and luminescent properties of the films are also discussed. Indeed, our experimental results show how the optical properties of the films can be adjusted for their integration in photonic devices. Moreover, time resolved and steady state fluorescence analyses, including quantum yield determination, indicate that the fluorescence efficiency is a function of the deposition parameters. An outstanding property of these materials is that, even for high UV absorption values (i.e. large layer thickness and/or dye concentration), the emitted light is not reabsorbed by the film. Such highly UV absorbent and green emitting films can be used as UV photodetectors with a detection threshold smaller than 10 μW cm-2, a value similar to the limit of some commercial UV photodetectors. Based on these properties, the use of the films as visual tags for the detection of solar UV irradiation is proposed. es
dc.description.sponsorship Junta de Andalucia TEP5283 TEP‐8067 es
dc.description.sponsorship España Mineco CONSOLIDER CSD2008‐00023 MAT2010‐ 21228 RECUPERA2020 es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher Royal Society of Chemistry es
dc.relation.ispartof Journal of Materials Chemistry C 2, 6561-6573.
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.title Luminescent 3-hydroxyflavone nanocomposites with a tuneable refractive index for photonics and UV detection by plasma assisted vacuum deposition es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/submittedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Química Inorgánica es
dc.relation.projectID TEP5283 es
dc.relation.projectID TEP‐8067 es
dc.relation.projectID CSD2008‐00023 es
dc.relation.projectID MAT2010‐ 21228 es
dc.relation.publisherversion http://dx.doi.org/10.1039/c4tc00294f es
dc.identifier.doi 10.1039/c4tc00294f es
idus.format.extent 13 p. es
dc.journaltitle Journal of Materials Chemistry C 2 es
dc.publication.initialPage 6561 es
dc.publication.endPage 6573 es
dc.contributor.funder Junta de Andalucía
dc.contributor.funder Ministerio de Economía y Competitividad (MINECO). España
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