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Título: | Photonic Tuning of the Emission Color of Nanophosphor Films Processed at High Temperature |
Autor: | Geng, Dongling; Lozano, Gabriel CSIC ORCID; Calvo, Mauricio E. CSIC ORCID ; Núñez, Nuria O. CSIC ORCID; Becerro, Ana Isabel CSIC ORCID; Ocaña, Manuel CSIC ORCID; Míguez, Hernán CSIC ORCID | Fecha de publicación: | 2017 | Editor: | Wiley-Blackwell | Citación: | Advanced Optical Materials 5: 1- 8 (2017) | Resumen: | Photonics offers new possibilities to tailor the photoluminescence process in phosphor-converted light emitting diodes. Herein, it is demonstrated that the emission color of thin layers of rare-earth doped nanocrystals can be strongly modulated in tunable spectral ranges using optical resonators specifically designed to this end. GdVO4:Dy3+ nanoparticles of controlled size and shape are synthesized using a solvothermal method with which highly transparent nanophosphor thin films are prepared. This paper designs and fabricates optical multilayers, which are transparent in the UV and resonant at the frequencies where the Dy3+ ions emit, to prove that the color coordinates of this emitter can be tuned from green to blue or yellow with unprecedented precision. Key to the achievement herein reported is the careful analysis of the structural and optical properties of thin nanophosphor layers with the processing temperature in order to achieve efficient photoluminescence while preserving the transparency of the film. The results open a new path for fundamental and applied research in solid-state lighting in which photonic nanostructures allow controlling the emission properties of state-of-the-art materials without altering their structure or chemical composition. | Versión del editor: | http://doi.org/10.1002/adom.201700099 | URI: | http://hdl.handle.net/10261/155992 | DOI: | 10.1002/adom.201700099 | ISSN: | 2195-1071 |
Aparece en las colecciones: | (ICMS) Artículos |
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Geng_et_al-2017-Advanced_Optical_Materials.pdf | 3,78 MB | Adobe PDF | Visualizar/Abrir |
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