A nanocomposite sol-gel film based on PbS quantum dots embedded into an amorphous host inorganic matrix

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dc.contributor.authorMihail, Elisa
dc.contributor.authorSava, Bogdan Alexandru
dc.contributor.authorEftimie, Mihai
dc.contributor.authorNicoara, Adrian Ionut
dc.contributor.authorVasiliu, Ileana Cristina
dc.contributor.authorRusu, Madalin Ion
dc.contributor.authorBartha, Cristina
dc.contributor.authorEnculescu, Monica
dc.contributor.authorKuncser, Andrei Cristian
dc.contributor.authorOane, Mihai
dc.contributor.authorElosúa Aguado, César
dc.contributor.authorLópez Torres, Diego
dc.contributor.departmentIngeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.date.accessioned2024-01-23T16:42:51Z
dc.date.available2024-01-23T16:42:51Z
dc.date.issued2023
dc.date.updated2024-01-23T16:00:09Z
dc.description.abstractIn this study, a sol-gel film based on lead sulfide (PbS) quantum dots incorporated into a host network was synthesized as a special nanostructured composite material with potential applications in temperature sensor systems. This work dealt with the optical, structural, and morphological properties of a representative PbS quantum dot (QD)-containing thin film belonging to the Al2O3–SiO2–P2O5 system. The film was prepared using the sol-gel method combined with the spin coating technique, starting from a precursor solution containing a suspension of PbS QDs in toluene with a narrow size distribution and coated on a glass substrate in a multilayer process, followed by annealing of each deposited layer. The size (approximately 10 nm) of the lead sulfide nanocrystallites was validated by XRD and by the quantum confinement effect based on the band gap value and by TEM results. The photoluminescence peak of 1505 nm was very close to that of the precursor PbS QD solution, which demonstrated that the synthesis route of the film preserved the optical emission characteristic of the PbS QDs. The photoluminescence of the lead sulfide QD-containing film in the near infrared domain demonstrates that this material is a promising candidate for future sensing applications in temperature monitoring.en
dc.description.sponsorshipThis work was funded by a grant from the Romanian National Authority for Scientific Research and Innovation, CCCDI–UEFISCDI, project ERANET-MANUNET-TEMSENSOPT, MNET20/NMCS-3732, within PNCDI III, contract 213/2 December 2020; the Core Program, granted by the Romanian Ministry of Research, Innovation and Digitalization (MRID) through the contracts OPTRONICA VII-no. 11N/2023, LAPLAS VII-no. 30N/2023, and project PC1-PN 23 08 0101/2023; and the MRID through Program I—Development of the National R&D System, Subprogram 1.2–Institutional Performance–Projects for Excellence Financing in RDI, contract numbers 13PFE/2021, 18PFE/2021, and 35PFE/2021.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationElisa, M., Sava, B. A., Eftimie, M., Nicoara, A. I., Vasiliu, I. C., Rusu, M. I., Bartha, C., Enculescu, M., Kuncser, A. C., Oane, M., Elosua Aguado, C., López-Torres, D. (2023) A nanocomposite sol-gel film based on PbS quantum dots embedded into an amorphous host inorganic matrix. Materials, 16(22), 1-14. https://doi.org/10.3390/ma16227105.en
dc.identifier.doi10.3390/ma16227105
dc.identifier.issn1996-1944
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/47165
dc.language.isoengen
dc.publisherMDPIen
dc.relation.ispartofMaterials 2023, 16(22), 7105en
dc.relation.publisherversionhttps://doi.org/10.3390/ma16227105
dc.rights© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectPbSen
dc.subjectQuantum dotsen
dc.subjectSol-gel methoden
dc.subjectAmorphous materialen
dc.titleA nanocomposite sol-gel film based on PbS quantum dots embedded into an amorphous host inorganic matrixen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication15c04d09-51b2-4cb6-841f-c775768039f7
relation.isAuthorOfPublication6d2c893c-becd-4b38-8cdc-382158964911
relation.isAuthorOfPublication.latestForDiscovery15c04d09-51b2-4cb6-841f-c775768039f7

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