The role of temperature in the photoluminescence quantum yield (PLQY) of Ag 2 S-based nanocrystals.

Autor:	Wang P; Materials Science Institute of Madrid, ICMM, Spanish Research Council, CSIC, C/Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain. bh.juarez@cisc.es., Morales-Márquez R; Materials Science Institute of Madrid, ICMM, Spanish Research Council, CSIC, C/Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain. bh.juarez@cisc.es., Cervás G; Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain., Hernández Medel A; Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain.; Nanomaterials for BioImaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain., Paris Ogayar M; Nanomaterials for BioImaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain., Jimenez de Aberasturi D; SpainCiCbiomaGUNE, Basque Research and Technology Alliance (BRTA), Miramon Pasealekua, 182, 20014 Donostia-San Sebastián, Gipuzkoa, Spain.; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales and Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain.; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain., de Isidro-Gomez AI; Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain., Torres-Pardo A; Inorganic Chemistry Department, Chemical Sciences Faculty, Universidad Complutense de Madrid, 28040 Madrid, Spain.; ICTS National Center for Electronic Microscopy, Universidad Complutense, 28040 Madrid, Spain., Palomares FJ; Materials Science Institute of Madrid, ICMM, Spanish Research Council, CSIC, C/Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain. bh.juarez@cisc.es., Garcia-Orrit S; IMDEA Nanoscience, Faraday 9, Campus de Cantoblanco, 28049 Madrid, Spain., Sousa CT; Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain., Espinosa A; Materials Science Institute of Madrid, ICMM, Spanish Research Council, CSIC, C/Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain. bh.juarez@cisc.es., Telle HH; Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain., Ortgies DH; Nanomaterials for BioImaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain.; Nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034 Madrid, Spain. emma.martin@uam.es.; Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain.; Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, 28049 Madrid, Spain., Vega-Mayoral V; IMDEA Nanoscience, Faraday 9, Campus de Cantoblanco, 28049 Madrid, Spain., Cabanillas-González J; IMDEA Nanoscience, Faraday 9, Campus de Cantoblanco, 28049 Madrid, Spain., Martín Rodríguez E; Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain.; Nanomaterials for BioImaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain.; Nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9,100, 28034 Madrid, Spain. emma.martin@uam.es.; Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain.; Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, 28049 Madrid, Spain., Resch-Genger U; Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany. karl-david.wegner@bam.de., David Wegner K; Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstaetter-Str. 11, 12489 Berlin, Germany. karl-david.wegner@bam.de., Juárez BH; Materials Science Institute of Madrid, ICMM, Spanish Research Council, CSIC, C/Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain. bh.juarez@cisc.es.
Jazyk:	angličtina
Zdroj:	Materials horizons [Mater Horiz] 2024 Nov 25; Vol. 11 (23), pp. 6158-6168. Date of Electronic Publication: 2024 Nov 25.
DOI:	10.1039/d4mh01016g
Abstrakt:	Highly emissive Ag 2 S nanocrystals (NCs) passivated with a gradated shell incorporating Se and Zn were synthesized in air, and the temperature dependence of their photoluminescence quantum yield (PLQY) was quantified in both organic and aqueous media at ∼1200 nm. The relevance of this parameter, measured at physiological temperatures, is highlighted for applications that rely on the near infrared (NIR) photoluminescence of NCs, such as deep NIR imaging or luminescence nanothermometry. Hyperspectral NIR imaging shows that Ag 2 S-based NCs with a PLQY in organic media of about 10% are inefficient for imaging at 40 °C through 20 mm thick tissue with low laser irradiation power densities. In contrast, water-transferred Ag 2 S-based NCs with an initial PLQY of 2% in water exhibit improved robustness against temperature changes, enabling improved imaging performance.
Databáze:	MEDLINE
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