Nanoporous alumina support covered by imidazole moiety-based ionic liquids: optical characterization and application

Algarra González, Manuel; López Escalante, María Cruz; Martínez de Yuso, María Valle; Soto, Juan; Cuevas, Ana L.; Benavente, Juana

Nanoporous alumina support covered by imidazole moiety-based ionic liquids: optical characterization and application

dc.contributor.author	Algarra González, Manuel
dc.contributor.author	López Escalante, María Cruz
dc.contributor.author	Martínez de Yuso, María Valle
dc.contributor.author	Soto, Juan
dc.contributor.author	Cuevas, Ana L.
dc.contributor.author	Benavente, Juana
dc.contributor.department	Institute for Advanced Materials and Mathematics - INAMAT2	en
dc.date.accessioned	2023-02-23T11:06:00Z
dc.date.available	2023-02-23T11:06:00Z
dc.date.issued	2022
dc.date.updated	2023-02-23T10:56:12Z
dc.description.abstract	This work analyzes chemical surface and optical characteristics of a commercial nanoporous alumina structure (NPAS) as a result of surface coverage by different imidazolium-based ionic liquids (1-butyl-3-metylimidazolium hexafluorophosphate, 3-methyl-1-octylimidazolium hexafluorophosphate, or 1-ethyl-3-methylimidazolium tetrafluoroborate). Optical characteristics of the IL/NPAS samples were determined by photoluminescence (at different excitation wavelengths (from 300 nm to 400 nm), ellipsometry spectroscopy, and light transmittance/reflectance measurements for a range of wavelengths that provide information on modifications related to both visible and near-infrared regions. Chemical surface characterization of the three IL/NPAS samples was performed by X-ray photoelectron spectroscopy (XPS), which indicates almost total support coverage by the ILs. The IL/NPAS analyzed samples exhibit different photoluminescence behavior, high transparency (<85%), and a reflection maximum at wavelength ~380 nm, with slight differences depending on the IL, while the refractive index values are rather similar to those shown by the ILs. Moreover, the illuminated I–V curves (under standard conditions) of the IL/NPAS samples were also measured for determining the efficiency energy conversion to estimate their possible application as solar cells. On the other hand, a computational quantum mechanical modeling method (DFT) was used to establish the most stable bond between the ILs and the NPAS support.	en
dc.description.sponsorship	M.A. thanks the SpanishMinistry of Science and Innovation (MCIN/AEI/10.13039/ 501100011033) through project PID2021-122613OB-I00.	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Algarra, M., López Escalante, M. C., Martínez de Yuso, M. V., Soto, J., Cuevas, A. L., & Benavente, J. (2022). Nanoporous Alumina Support Covered by Imidazole Moiety–Based Ionic Liquids: Optical Characterization and Application. Nanomaterials, 12(23), 4131. https://doi.org/10.3390/nano12234131	en
dc.identifier.doi	10.3390/nano12234131
dc.identifier.issn	2079-4991
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/44789
dc.language.iso	eng	en
dc.publisher	MDPI	en
dc.relation.ispartof	Nanomaterials 2022, 12, 4131	en
dc.relation.projectID	info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2021-122613OB-I00/
dc.relation.publisherversion	https://doi.org/10.3390/nano12234131
dc.rights	© 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject	Nanoporous alumina	en
dc.subject	Ionic liquids	en
dc.subject	Optical properties	en
dc.subject	Solar cell	ene
dc.title	Nanoporous alumina support covered by imidazole moiety-based ionic liquids: optical characterization and application	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/publishedVersion
dspace.entity.type	Publication
relation.isAuthorOfPublication	ac68d8d5-2b22-478e-878b-bb0893409ddf
relation.isAuthorOfPublication.latestForDiscovery	ac68d8d5-2b22-478e-878b-bb0893409ddf