White-emitting organometallo-silica nanoparticles for sun-like light-emitting diodes
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Título: | White-emitting organometallo-silica nanoparticles for sun-like light-emitting diodes |
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Autor/es: | Ezquerro, Cintia | Fresta, Elisa | Serrano, Elena | Lalinde, Elena | Garcia-Martinez, Javier | Berenguer, Jesús R. | Costa, Rubén D. |
Grupo/s de investigación o GITE: | Laboratorio de Nanotecnología Molecular (NANOMOL) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Organometallo-silica nanoparticles | Sun-like light-emitting diodes |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 10-sep-2018 |
Editor: | Royal Society of Chemistry |
Cita bibliográfica: | Materials Horizons. 2019, 6: 130-136. doi:10.1039/C8MH00578H |
Resumen: | This work discloses a radically new way to prepare white-emitting hybrid nanoparticles, whose implementation in lighting devices provides encouraging proof-of-concept performances towards alternative sunlight sources. In detail, the new synthetic approach is based on the kinetic control of the formation of organometallic dots, built via the condensation of three emitting iridium(III) complexes, which are subsequently transformed into mesoporous silica nanoparticles. Our novel hybrid systems, which are exceptionally stable under harsh irradiation and thermal stress environments, show a bright white emission with a record photoluminescence quantum yield. Their remarkable performance prompted us to implement them into single-component hybrid light-emitting diodes (HLEDs), achieving a high-quality sunlight source that is stable for >2000 hours with linearly extrapolated stabilities of >10 000 h. This represents one of the most stable HLEDs reported so far, while the versatility of our synthesis approach with respect to the type of emitters opens new opportunities for the design and fabrication of white-emitting color down-converters for HLEDs in the future. |
Patrocinador/es: | C. E., E. L. and J. R. B acknowledge Spanish MINECO and AEI/FEDER (ref. CTQ2016-78463-P). C. E. also thanks Universidad de La Rioja for a grant. E. F. and R.D.C. acknowledge the program “Ayudas para la atracción de talento investigador – Modalidad 1 of the Consejería de Educación, Juventud y Deporte – Comunidad de Madrid with the reference number 2016-T1/IND-1463”. R. D. C. acknowledges Spanish MINECO for the Ramón y Cajal program (RYC-2016-20891). J.G.M. acknowledges Spanish MINECO and AEI/FEDER (ref. CTQ2014-60017-R). E.S. thanks Spanish MINECO and AEI/FEDER (ref. CTQ2015-74494-JIN) and the University of Alicante (“Ayudas para la captación de talento” program with the reference number UATALENTO16-03). |
URI: | http://hdl.handle.net/10045/82849 |
ISSN: | 2051-6347 (Print) | 2051-6355 (Online) |
DOI: | 10.1039/C8MH00578H |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © Royal Society of Chemistry |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1039/C8MH00578H |
Aparece en las colecciones: | INV - NANOMOL - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2018_Ezquerro_etal_MaterialsHorizons_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,68 MB | Adobe PDF | Abrir Vista previa |
2018_Ezquerro_etal_MaterialsHorizons_final.pdf | Versión final (acceso restringido) | 2,46 MB | Adobe PDF | Abrir Solicitar una copia |
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