Luminescent Pb-free perovskites: low-cytotoxicity materials for primary thermal sensing

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dc.contributor.authorPassini, Luan N.
dc.contributor.authorMaturi, Fernando E. [UNESP]
dc.contributor.authorPugina, Roberta S.
dc.contributor.authorHilário, Eloísa G.
dc.contributor.authorFontes, Marina
dc.contributor.authorBarud, Hernane S.
dc.contributor.authorCarlos, Luís D.
dc.contributor.authorCaiut, José Maurício A.
dc.contributor.authorManzani, Danilo
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversity of Aveiro
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Araraquara (UNIARA)
dc.date.accessioned2023-07-29T13:19:34Z
dc.date.available2023-07-29T13:19:34Z
dc.date.issued2023-01-01
dc.description.abstractSelecting a suitable host matrix to perform temperature sensing in biomedical applications requires low cytotoxicity, facile synthesis, and an ability to be doped with light-emitting ions. With this perspective, indium-based halide double perovskites, specifically Cs2AgIn0.9Bi0.1Cl6, Cs2Ag0.6Na0.4InCl6, and Cs2Ag0.6Na0.4In0.9Bi0.1Cl6, were chosen as host materials to develop lanthanide-based primary thermometers due to their low phonon energy and ease of synthesis. The incorporation of Na+ and Bi3+ into the perovskite cubic crystal lattice was confirmed by X-ray diffraction and Raman spectroscopy while the optical properties of both the undoped and Yb3+/Er3+ co-doped perovskites were assessed by diffuse reflectance and photoluminescence spectroscopies. The obtained perovskite samples demonstrated excellent thermal stability, with the ability to withstand temperatures as high as 500 °C. A temperature-dependent green emission of Er3+ was observed in the co-doped samples upon 980 nm irradiation, yielding a relative thermal sensitivity and uncertainty in temperature values of 1.3% K−1 and 0.3 K, respectively. Incorporating the obtained perovskites (0.05 to 0.20 mg mL−1) into L2929 cells as an in vitro model resulted in high cell viability, underscoring the benefits of selecting such a low-cytotoxicity material for applications in biological media.en
dc.description.affiliationSão Carlos Institute of Chemistry University of São Paulo (USP), SP
dc.description.affiliationPhantom-g CICECO-Aveiro Institute of Materials Department of Physics University of Aveiro, 3810-193
dc.description.affiliationInstitute of Chemistry São Paulo State University (UNESP), SP
dc.description.affiliationDepartment of Chemistry Faculty of Philosophy Sciences and Letters University of São Paulo (USP), SP
dc.description.affiliationBioPolMat-Biopolymers and Biomaterials Research Group University of Araraquara (UNIARA), SP
dc.description.affiliationUnespInstitute of Chemistry São Paulo State University (UNESP), SP
dc.identifierhttp://dx.doi.org/10.1039/d3tc00768e
dc.identifier.citationJournal of Materials Chemistry C.
dc.identifier.doi10.1039/d3tc00768e
dc.identifier.issn2050-7534
dc.identifier.issn2050-7526
dc.identifier.scopus2-s2.0-85161616762
dc.identifier.urihttp://hdl.handle.net/11449/247566
dc.language.isoeng
dc.relation.ispartofJournal of Materials Chemistry C
dc.sourceScopus
dc.titleLuminescent Pb-free perovskites: low-cytotoxicity materials for primary thermal sensingen
dc.typeArtigo
unesp.author.orcid0000-0002-4866-2455[1]
unesp.author.orcid0000-0002-9305-8185 0000-0002-9305-8185[2]
unesp.author.orcid0000-0001-9081-2413[6]
unesp.author.orcid0000-0003-4747-6535[7]
unesp.author.orcid0000-0002-3161-5302[8]
unesp.author.orcid0000-0001-7280-5404[9]

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